sending support

gui/include/bitcoingui.h

@@ -67,6 +67,7 @@ private slots:
 
     void newAddressClicked();
     void copyClipboardClicked();
+    void error(const QString &title, const QString &message);
 };
 
 #endif

gui/include/clientmodel.h

@@ -9,18 +9,35 @@ class ClientModel : public QObject
 public:
     explicit ClientModel(QObject *parent = 0);
 
+    enum StatusCode
+    {
+        OK,
+        InvalidAmount,
+        InvalidAddress,
+        AmountExceedsBalance,
+        AmountWithFeeExceedsBalance,
+        Aborted,
+        MiscError
+    };
+
     qint64 getBalance();
     QString getAddress();
     int getNumConnections();
     int getNumBlocks();
     int getNumTransactions();
 
+    qint64 getTransactionFee();
+
+    StatusCode sendCoins(const QString &payTo, qint64 payAmount);
+
 signals:
     void balanceChanged(qint64 balance);
     void addressChanged(const QString &address);
     void numConnectionsChanged(int count);
     void numBlocksChanged(int count);
     void numTransactionsChanged(int count);
+    /* Asynchronous error notification */
+    void error(const QString &title, const QString &message);
 
 public slots:
 

gui/include/sendcoinsdialog.h

@@ -6,6 +6,7 @@
 namespace Ui {
     class SendCoinsDialog;
 }
+class ClientModel;
 
 class SendCoinsDialog : public QDialog
 {
@@ -15,8 +16,11 @@ public:
     explicit SendCoinsDialog(QWidget *parent = 0, const QString &address = "");
     ~SendCoinsDialog();
 
+    void setModel(ClientModel *model);
+
 private:
     Ui::SendCoinsDialog *ui;
+    ClientModel *model;
 
 private slots:
     void on_buttonBox_rejected();