Added some ui elements to make it easier to connect to nodes

config.go

@@ -16,6 +16,7 @@ var UseSeed bool
 var ImportKey string
 var ExportKey bool
 var UseGui bool
+var DataDir string
 
 func Init() {
 	flag.BoolVar(&StartConsole, "c", false, "debug and testing console")
@@ -27,6 +28,7 @@ func Init() {
 	flag.BoolVar(&GenAddr, "genaddr", false, "create a new priv/pub key")
 	flag.BoolVar(&ExportKey, "export", false, "export private key")
 	flag.StringVar(&OutboundPort, "p", "30303", "listening port")
+	flag.StringVar(&DataDir, "dir", ".ethereum", "ethereum data directory")
 	flag.StringVar(&ImportKey, "import", "", "imports the given private key (hex)")
 	flag.IntVar(&MaxPeer, "x", 5, "maximum desired peers")
 

ethereum.go

@@ -89,11 +89,12 @@ func main() {
 	runtime.GOMAXPROCS(runtime.NumCPU())
 
 	ethchain.InitFees()
-	ethutil.ReadConfig(".ethereum")
+	ethutil.ReadConfig(DataDir)
 	ethutil.Config.Seed = UseSeed
 
 	// Instantiated a eth stack
 	ethereum, err := eth.New(eth.CapDefault, UseUPnP)
+	ethereum.Port = OutboundPort
 	if err != nil {
 		log.Println("eth start err:", err)
 		return

test_app.qml

 import QtQuick 2.0
 import QtQuick.Controls 1.0;
 import QtQuick.Layouts 1.0;
-import GoExtensions 1.0
+import Ethereum 1.0
 
 ApplicationWindow {
 	minimumWidth: 500
@@ -29,7 +29,7 @@ ApplicationWindow {
 		anchors.topMargin: 5
 		text: "Place bet"
 		onClicked: {
-			txHash.text = eth.createTx("e6716f9544a56c530d868e4bfbacb172315bdead", parseInt(textField.text))
+			txHash.text = eth.createTx("e6716f9544a56c530d868e4bfbacb172315bdead", textField.text)
 		}
 	}
 }

ui/gui.go

@@ -12,41 +12,56 @@ import (
 	"time"
 )
 
+// Block interface exposed to QML
+type Block struct {
+	Number int
+	Hash   string
+}
+
+// Creates a new QML Block from a chain block
+func NewBlockFromBlock(block *ethchain.Block) *Block {
+	info := block.BlockInfo()
+	hash := hex.EncodeToString(block.Hash())
+
+	return &Block{Number: int(info.Number), Hash: hash}
+}
+
 type Gui struct {
+	// The main application window
 	win *qml.Window
+	// QML Engine
 	engine    *qml.Engine
 	component *qml.Common
+	// The ethereum interface
 	eth *eth.Ethereum
 
-	// The Ethereum library
+	// The public Ethereum library
 	lib *EthLib
 }
 
+// Create GUI, but doesn't start it
 func New(ethereum *eth.Ethereum) *Gui {
 	lib := &EthLib{blockManager: ethereum.BlockManager, blockChain: ethereum.BlockManager.BlockChain(), txPool: ethereum.TxPool}
 
-	return &Gui{eth: ethereum, lib: lib}
-}
-
-type Block struct {
-	Number int
-	Hash   string
-}
+	data, _ := ethutil.Config.Db.Get([]byte("KeyRing"))
+	keyRing := ethutil.NewValueFromBytes(data)
+	addr := keyRing.Get(1).Bytes()
 
-func NewBlockFromBlock(block *ethchain.Block) *Block {
-	info := block.BlockInfo()
-	hash := hex.EncodeToString(block.Hash())
+	ethereum.BlockManager.WatchAddr(addr)
 
-	return &Block{Number: int(info.Number), Hash: hash}
+	return &Gui{eth: ethereum, lib: lib}
 }
 
 func (ui *Gui) Start() {
-	qml.RegisterTypes("GoExtensions", 1, 0, []qml.TypeSpec{{
+	// Register ethereum functions
+	qml.RegisterTypes("Ethereum", 1, 0, []qml.TypeSpec{{
 		Init: func(p *Block, obj qml.Object) { p.Number = 0; p.Hash = "" },
 	}})
 
 	ethutil.Config.Log.Infoln("[GUI] Starting GUI")
+	// Create a new QML engine
 	ui.engine = qml.NewEngine()
+	// Load the main QML interface
 	component, err := ui.engine.LoadFile("wallet.qml")
 	if err != nil {
 		panic(err)
@@ -55,13 +70,18 @@ func (ui *Gui) Start() {
 	ui.win = component.CreateWindow(nil)
 
 	context := ui.engine.Context()
+
+	// Expose the eth library and the ui library to QML
 	context.SetVar("eth", ui.lib)
 	context.SetVar("ui", &UiLib{engine: ui.engine, eth: ui.eth})
 
+	// Register the ui as a block processor
 	ui.eth.BlockManager.SecondaryBlockProcessor = ui
 
+	// Add the ui as a log system so we can log directly to the UGI
 	ethutil.Config.Log.AddLogSystem(ui)
 
+	// Loads previous blocks
 	go ui.setInitialBlockChain()
 	go ui.updatePeers()
 
@@ -70,6 +90,7 @@ func (ui *Gui) Start() {
 }
 
 func (ui *Gui) setInitialBlockChain() {
+	// Load previous 10 blocks
 	chain := ui.eth.BlockManager.BlockChain().GetChain(ui.eth.BlockManager.BlockChain().CurrentBlock.Hash(), 10)
 	for _, block := range chain {
 		ui.ProcessBlock(block)
@@ -81,17 +102,24 @@ func (ui *Gui) ProcessBlock(block *ethchain.Block) {
 	ui.win.Root().Call("addBlock", NewBlockFromBlock(block))
 }
 
+// Logging functions that log directly to the GUI interface
 func (ui *Gui) Println(v ...interface{}) {
-	str := fmt.Sprintln(v...)
-	// remove last \n
-	ui.win.Root().Call("addLog", str[:len(str)-1])
+	str := strings.TrimRight(fmt.Sprintln(v...), "\n")
+	lines := strings.Split(str, "\n")
+	for _, line := range lines {
+		ui.win.Root().Call("addLog", line)
+	}
 }
 
 func (ui *Gui) Printf(format string, v ...interface{}) {
 	str := strings.TrimRight(fmt.Sprintf(format, v...), "\n")
-	ui.win.Root().Call("addLog", str)
+	lines := strings.Split(str, "\n")
+	for _, line := range lines {
+		ui.win.Root().Call("addLog", line)
+	}
 }
 
+// Simple go routine function that updates the list of peers in the GUI
 func (ui *Gui) updatePeers() {
 	for {
 		ui.win.Root().Call("setPeers", fmt.Sprintf("%d / %d", ui.eth.Peers().Len(), ui.eth.MaxPeers))
@@ -99,11 +127,14 @@ func (ui *Gui) updatePeers() {
 	}
 }
 
+// UI Library that has some basic functionality exposed
 type UiLib struct {
 	engine    *qml.Engine
 	eth       *eth.Ethereum
+	connected bool
 }
 
+// Opens a QML file (external application)
 func (ui *UiLib) Open(path string) {
 	component, err := ui.engine.LoadFile(path[7:])
 	if err != nil {
@@ -118,7 +149,13 @@ func (ui *UiLib) Open(path string) {
 }
 
 func (ui *UiLib) Connect() {
+	if !ui.connected {
 		ui.eth.Start()
+	}
+}
+
+func (ui *UiLib) ConnectToPeer(addr string) {
+	ui.eth.ConnectToPeer(addr)
 }
 
 type Tester struct {

ui/library.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"github.com/ethereum/eth-go/ethchain"
 	"github.com/ethereum/eth-go/ethutil"
-	"math/big"
 )
 
 type EthLib struct {
@@ -14,15 +13,18 @@ type EthLib struct {
 	txPool       *ethchain.TxPool
 }
 
-func (lib *EthLib) CreateTx(receiver string, amount uint64) string {
+func (lib *EthLib) CreateTx(receiver, a string) string {
 	hash, err := hex.DecodeString(receiver)
 	if err != nil {
 		return err.Error()
 	}
-
-	tx := ethchain.NewTransaction(hash, big.NewInt(int64(amount)), []string{""})
 	data, _ := ethutil.Config.Db.Get([]byte("KeyRing"))
 	keyRing := ethutil.NewValueFromBytes(data)
+
+	amount := ethutil.Big(a)
+	tx := ethchain.NewTransaction(hash, amount, []string{""})
+	tx.Nonce = lib.blockManager.GetAddrState(keyRing.Get(1).Bytes()).Nonce
+
 	tx.Sign(keyRing.Get(0).Bytes())
 
 	lib.txPool.QueueTransaction(tx)

wallet.qml

@@ -3,7 +3,7 @@ import QtQuick.Controls 1.0;
 import QtQuick.Layouts 1.0;
 import QtQuick.Dialogs 1.0;
 import QtQuick.Window 2.1;
-import GoExtensions 1.0
+import Ethereum 1.0
 
 ApplicationWindow {
 	id: root
@@ -22,15 +22,19 @@ ApplicationWindow {
 			width: parent.width
 			Button {
 			      text: "Send"
-			      onClicked: console.log("SEND")
+			      onClicked: {
+				      console.log(eth.createTx(txReceiver.text, txAmount.text))
+			      }
 			}
 
 			TextField {
+			      id: txAmount
 			      width: 200
 			      placeholderText: "Amount"
 			}
 
 			TextField {
+			      id: txReceiver
 			      width: 300
 			      placeholderText: "Receiver Address (or empty for contract)"
 			      Layout.fillWidth: true
@@ -56,6 +60,34 @@ ApplicationWindow {
 		}
 	}
 
+	MenuBar {
+		Menu {
+			title: "File"
+			MenuItem {
+				text: "Import App"
+				shortcut: "Ctrl+o"
+				onTriggered: openAppDialog.open()
+			}
+		}
+
+		Menu {
+			title: "Network"
+			MenuItem {
+				text: "Add Peer"
+				shortcut: "Ctrl+p"
+				onTriggered: {
+					addPeerWin.visible = true
+				}
+			}
+
+			MenuItem {
+				text: "Start"
+				onTriggered: ui.connect()
+			}
+		}
+	}
+
+
 	property var blockModel: ListModel {
 		id: blockModel
 	}
@@ -142,6 +174,34 @@ ApplicationWindow {
 		}
 	}
 
+	Window {
+		id: addPeerWin
+		visible: false
+		minimumWidth: 230
+		maximumWidth: 230
+		maximumHeight: 50
+		minimumHeight: 50
+
+		TextField {
+			id: addrField
+			anchors.verticalCenter: parent.verticalCenter
+			anchors.left: parent.left
+			anchors.leftMargin: 10
+			placeholderText: "address:port"
+		}
+		Button {
+			anchors.left: addrField.right
+			anchors.verticalCenter: parent.verticalCenter
+			anchors.leftMargin: 5
+			text: "Add"
+			onClicked: {
+				ui.connectToPeer(addrField.text)
+				addrPeerWin.visible = false
+			}
+		}
+	}
+
+
 	function addBlock(block) {
 		blockModel.insert(0, {number: block.number, hash: block.hash})
 	}