Minimal architectural changes necessary to support multiple wallets in bitcoin-qt

- This commit is a minimal restructuring necessary to support multiple wallets in the UI. Please see multiwallet-qt.txt for details.

src/qt/walletview.h

@@ -0,0 +1,132 @@
+/*
+ * Qt4 bitcoin GUI.
+ *
+ * W.J. van der Laan 2011-2012
+ * The Bitcoin Developers 2011-2013
+ */
+#ifndef WALLETVIEW_H
+#define WALLETVIEW_H
+
+#include <QStackedWidget>
+
+class BitcoinGUI;
+class TransactionTableModel;
+class ClientModel;
+class WalletModel;
+class TransactionView;
+class OverviewPage;
+class AddressBookPage;
+class SendCoinsDialog;
+class SignVerifyMessageDialog;
+class Notificator;
+class RPCConsole;
+
+QT_BEGIN_NAMESPACE
+class QLabel;
+class QModelIndex;
+QT_END_NAMESPACE
+
+/*
+  WalletView class. This class represents the view to a single wallet.
+  It was added to support multiple wallet functionality. Each wallet gets its own WalletView instance.
+  It communicates with both the client and the wallet models to give the user an up-to-date view of the
+  current core state.
+*/
+class WalletView : public QStackedWidget
+{
+    Q_OBJECT
+public:
+    explicit WalletView(QWidget *parent, BitcoinGUI *_gui);
+    ~WalletView();
+
+    void setBitcoinGUI(BitcoinGUI *gui);
+    /** Set the client model.
+        The client model represents the part of the core that communicates with the P2P network, and is wallet-agnostic.
+    */
+    void setClientModel(ClientModel *clientModel);
+    /** Set the wallet model.
+        The wallet model represents a bitcoin wallet, and offers access to the list of transactions, address book and sending
+        functionality.
+    */
+    void setWalletModel(WalletModel *walletModel);
+    
+    bool handleURI(const QString &uri);
+    
+    void showOutOfSyncWarning(bool fShow);
+
+private:
+    BitcoinGUI *gui;
+    ClientModel *clientModel;
+    WalletModel *walletModel;
+
+    OverviewPage *overviewPage;
+    QWidget *transactionsPage;
+    AddressBookPage *addressBookPage;
+    AddressBookPage *receiveCoinsPage;
+    SendCoinsDialog *sendCoinsPage;
+    SignVerifyMessageDialog *signVerifyMessageDialog;
+
+    QLabel *labelEncryptionIcon;
+    QLabel *labelConnectionsIcon;
+    QLabel *labelBlocksIcon;
+    QLabel *progressBarLabel;
+
+    QAction *overviewAction;
+    QAction *historyAction;
+    QAction *quitAction;
+    QAction *sendCoinsAction;
+    QAction *addressBookAction;
+    QAction *signMessageAction;
+    QAction *verifyMessageAction;
+    QAction *aboutAction;
+    QAction *receiveCoinsAction;
+    QAction *optionsAction;
+    QAction *toggleHideAction;
+    QAction *exportAction;
+    QAction *encryptWalletAction;
+    QAction *backupWalletAction;
+    QAction *changePassphraseAction;
+    QAction *aboutQtAction;
+    QAction *openRPCConsoleAction;
+
+    TransactionView *transactionView;
+
+    /** Create the main UI actions. */
+    void createActions();
+    /** Create the menu bar and sub-menus. */
+
+public slots:
+    /** Switch to overview (home) page */
+    void gotoOverviewPage();
+    /** Switch to history (transactions) page */
+    void gotoHistoryPage();
+    /** Switch to address book page */
+    void gotoAddressBookPage();
+    /** Switch to receive coins page */
+    void gotoReceiveCoinsPage();
+    /** Switch to send coins page */
+    void gotoSendCoinsPage();
+
+    /** Show Sign/Verify Message dialog and switch to sign message tab */
+    void gotoSignMessageTab(QString addr = "");
+    /** Show Sign/Verify Message dialog and switch to verify message tab */
+    void gotoVerifyMessageTab(QString addr = "");
+
+    /** Show incoming transaction notification for new transactions.
+
+        The new items are those between start and end inclusive, under the given parent item.
+    */
+    void incomingTransaction(const QModelIndex& parent, int start, int /*end*/);
+    /** Encrypt the wallet */
+    void encryptWallet(bool status);
+    /** Backup the wallet */
+    void backupWallet();
+    /** Change encrypted wallet passphrase */
+    void changePassphrase();
+    /** Ask for passphrase to unlock wallet temporarily */
+    void unlockWallet();
+    
+    void setEncryptionStatus();
+};
+
+#endif // WALLETVIEW_H