Merge branch 'master' of ssh://amethyst/home/orion/projects2/bitcoin/bitcoin-qt

README.rst

@@ -14,20 +14,18 @@ This has been implemented:
 
 - GUI only functionality (copy to clipboard, select address, address/transaction filter proxys)
 
-- Bitcoin core is made compatible with Qt4, and linked against
+- Bitcoin core is made compatible with Qt4
 
 - Send coins dialog: address and input validation
 
 - Address book and transactions views and models
 
+- Options dialog
+
 - Sending coins
 
 This has to be done:
 
-- Settings are not remembered between invocations yet
-
-- Minimize to tray / Minimize on close
-
 - Start at system start
 
 - Internationalization (convert WX language files)

bitcoin.pro

@@ -62,7 +62,8 @@ HEADERS += gui/include/bitcoingui.h \
     gui/include/transactionrecord.h \
     gui/include/guiconstants.h \
     gui/include/optionsmodel.h \
-    gui/include/monitoreddatamapper.h
+    gui/include/monitoreddatamapper.h \
+    core/include/externui.h
 SOURCES += gui/src/bitcoin.cpp gui/src/bitcoingui.cpp \
     gui/src/transactiontablemodel.cpp \
     gui/src/addresstablemodel.cpp \

core/include/externui.h

@@ -0,0 +1,45 @@
+// Copyright (c) 2010 Satoshi Nakamoto
+// Distributed under the MIT/X11 software license, see the accompanying
+// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+#ifndef BITCOIN_EXTERNUI_H
+#define BITCOIN_EXTERNUI_H
+
+#include <string>
+
+typedef void wxWindow;
+#define wxYES                   0x00000002
+#define wxOK                    0x00000004
+#define wxNO                    0x00000008
+#define wxYES_NO                (wxYES|wxNO)
+#define wxCANCEL                0x00000010
+#define wxAPPLY                 0x00000020
+#define wxCLOSE                 0x00000040
+#define wxOK_DEFAULT            0x00000000
+#define wxYES_DEFAULT           0x00000000
+#define wxNO_DEFAULT            0x00000080
+#define wxCANCEL_DEFAULT        0x80000000
+#define wxICON_EXCLAMATION      0x00000100
+#define wxICON_HAND             0x00000200
+#define wxICON_WARNING          wxICON_EXCLAMATION
+#define wxICON_ERROR            wxICON_HAND
+#define wxICON_QUESTION         0x00000400
+#define wxICON_INFORMATION      0x00000800
+#define wxICON_STOP             wxICON_HAND
+#define wxICON_ASTERISK         wxICON_INFORMATION
+#define wxICON_MASK             (0x00000100|0x00000200|0x00000400|0x00000800)
+#define wxFORWARD               0x00001000
+#define wxBACKWARD              0x00002000
+#define wxRESET                 0x00004000
+#define wxHELP                  0x00008000
+#define wxMORE                  0x00010000
+#define wxSETUP                 0x00020000
+
+extern int MyMessageBox(const std::string& message, const std::string& caption="Message", int style=wxOK, wxWindow* parent=NULL, int x=-1, int y=-1);
+#define wxMessageBox  MyMessageBox
+extern int ThreadSafeMessageBox(const std::string& message, const std::string& caption, int style=wxOK, wxWindow* parent=NULL, int x=-1, int y=-1);
+extern bool ThreadSafeAskFee(int64 nFeeRequired, const std::string& strCaption, wxWindow* parent);
+extern void CalledSetStatusBar(const std::string& strText, int nField);
+extern void UIThreadCall(boost::function0<void> fn);
+extern void MainFrameRepaint();
+
+#endif

core/include/headers.h

@@ -127,7 +127,7 @@
 #include "uibase.h"
 #include "ui.h"
 #else
-#include "noui.h"
+#include "externui.h"
 #endif
 #include "init.h"
 

gui/include/bitcoingui.h

@@ -11,6 +11,8 @@ class ClientModel;
 QT_BEGIN_NAMESPACE
 class QLabel;
 class QLineEdit;
+class QTableView;
+class QAbstractItemModel;
 QT_END_NAMESPACE
 
 class BitcoinGUI : public QMainWindow
@@ -27,8 +29,12 @@ public:
         Sent = 2,
         Received = 3
     } TabIndex;
+
+protected:
+    void changeEvent(QEvent *e);
+    void closeEvent(QCloseEvent *event);
+
 private:
-    TransactionTableModel *transaction_model;
     ClientModel *model;
 
     QLineEdit *address;
@@ -41,15 +47,17 @@ private:
     QAction *sendcoins;
     QAction *addressbook;
     QAction *about;
-    QAction *receiving_addresses;
+    QAction *receivingAddresses;
     QAction *options;
-    QAction *openBitCoin;
+    QAction *openBitcoin;
 
     QSystemTrayIcon *trayIcon;
+    QList<QTableView *> transactionViews;
 
     void createActions();
     QWidget *createTabs();
     void createTrayIcon();
+    void setTabsModel(QAbstractItemModel *transaction_model);
 
 public slots:
     void setBalance(qint64 balance);
@@ -57,6 +65,7 @@ public slots:
     void setNumConnections(int count);
     void setNumBlocks(int count);
     void setNumTransactions(int count);
+    void error(const QString &title, const QString &message);
 
 private slots:
     void sendcoinsClicked();
@@ -64,10 +73,9 @@ private slots:
     void optionsClicked();
     void receivingAddressesClicked();
     void aboutClicked();
-
     void newAddressClicked();
     void copyClipboardClicked();
-    void error(const QString &title, const QString &message);
+    void trayIconActivated(QSystemTrayIcon::ActivationReason reason);
 };
 
 #endif

gui/include/clientmodel.h

@@ -5,6 +5,7 @@
 
 class OptionsModel;
 class AddressTableModel;
+class TransactionTableModel;
 
 class ClientModel : public QObject
 {
@@ -25,6 +26,7 @@ public:
 
     OptionsModel *getOptionsModel();
     AddressTableModel *getAddressTableModel();
+    TransactionTableModel *getTransactionTableModel();
 
     qint64 getBalance();
     QString getAddress();
@@ -39,6 +41,7 @@ public:
 private:
     OptionsModel *optionsModel;
     AddressTableModel *addressTableModel;
+    TransactionTableModel *transactionTableModel;
 
 signals:
     void balanceChanged(qint64 balance);

gui/include/optionsmodel.h

@@ -3,7 +3,12 @@
 
 #include <QAbstractListModel>
 
-/* Interface from QT to configuration data structure for bitcoin client */
+/* Interface from QT to configuration data structure for bitcoin client.
+   To QT, the options are presented as a list with the different options
+   laid out vertically.
+   This can be changed to a tree once the settings become sufficiently
+   complex.
+ */
 class OptionsModel : public QAbstractListModel
 {
     Q_OBJECT

gui/src/aboutdialog.cpp

@@ -1,11 +1,14 @@
 #include "aboutdialog.h"
 #include "ui_aboutdialog.h"
 
+#include "util.h"
+
 AboutDialog::AboutDialog(QWidget *parent) :
     QDialog(parent),
     ui(new Ui::AboutDialog)
 {
     ui->setupUi(this);
+    ui->versionLabel->setText(QString::fromStdString(FormatFullVersion()));
 }
 
 AboutDialog::~AboutDialog()

gui/src/bitcoin.cpp

@@ -5,21 +5,85 @@
 #include "clientmodel.h"
 #include "util.h"
 #include "init.h"
+#include "externui.h"
 
 #include <QApplication>
+#include <QMessageBox>
+
+// Need a global reference to process net thread
+BitcoinGUI *guiref;
+
+int MyMessageBox(const std::string& message, const std::string& caption, int style, wxWindow* parent, int x, int y)
+{
+    // Message from main thread
+    printf("MyMessageBox\n");
+    if(guiref)
+    {
+        guiref->error(QString::fromStdString(caption),
+                      QString::fromStdString(message));
+    }
+    else
+    {
+        QMessageBox::critical(0, QString::fromStdString(caption),
+            QString::fromStdString(message),
+            QMessageBox::Ok, QMessageBox::Ok);
+    }
+    return 4;
+}
+
+int ThreadSafeMessageBox(const std::string& message, const std::string& caption, int style, wxWindow* parent, int x, int y)
+{
+    // Message from network thread
+    if(guiref)
+    {
+        QMetaObject::invokeMethod(guiref, "error", Qt::QueuedConnection,
+                                   Q_ARG(QString, QString::fromStdString(caption)),
+                                   Q_ARG(QString, QString::fromStdString(message)));
+    }
+    else
+    {
+        printf("%s: %s\n", caption.c_str(), message.c_str());
+        fprintf(stderr, "%s: %s\n", caption.c_str(), message.c_str());
+    }
+    return 4;
+}
+
+bool ThreadSafeAskFee(int64 nFeeRequired, const std::string& strCaption, wxWindow* parent)
+{
+    // Query from network thread
+    // TODO
+    return true;
+}
+
+void CalledSetStatusBar(const std::string& strText, int nField)
+{
+    // Only used for built-in mining, which is disabled, simple ignore
+}
+
+void UIThreadCall(boost::function0<void> fn)
+{
+    // Only used for built-in mining, which is disabled, simple ignore
+}
+
+void MainFrameRepaint()
+{
+}
 
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
+    app.setQuitOnLastWindowClosed(false);
+    BitcoinGUI window;
+    guiref = &window;
 
     try {
         if(AppInit2(argc, argv))
         {
             ClientModel model;
-            BitcoinGUI window;
             window.setModel(&model);
 
             window.show();
+            guiref = 0;
 
             /* Depending on settings: QApplication::setQuitOnLastWindowClosed(false); */
             int retval = app.exec();

gui/src/bitcoingui.cpp

@@ -12,6 +12,7 @@
 #include "clientmodel.h"
 #include "guiutil.h"
 #include "editaddressdialog.h"
+#include "optionsmodel.h"
 
 #include "main.h"
 
@@ -48,26 +49,26 @@ BitcoinGUI::BitcoinGUI(QWidget *parent):
 
     createActions();
 
-    /* Menus */
+    // Menus
     QMenu *file = menuBar()->addMenu("&File");
     file->addAction(sendcoins);
     file->addSeparator();
     file->addAction(quit);
     
     QMenu *settings = menuBar()->addMenu("&Settings");
-    settings->addAction(receiving_addresses);
+    settings->addAction(receivingAddresses);
     settings->addAction(options);
 
     QMenu *help = menuBar()->addMenu("&Help");
     help->addAction(about);
     
-    /* Toolbar */
+    // Toolbar
     QToolBar *toolbar = addToolBar("Main toolbar");
     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
     toolbar->addAction(sendcoins);
     toolbar->addAction(addressbook);
 
-    /* Address: <address>: New... : Paste to clipboard */
+    // Address: <address>: New... : Paste to clipboard
     QHBoxLayout *hbox_address = new QHBoxLayout();
     hbox_address->addWidget(new QLabel(tr("Your Bitcoin Address:")));
     address = new QLineEdit();
@@ -80,7 +81,7 @@ BitcoinGUI::BitcoinGUI(QWidget *parent):
     hbox_address->addWidget(button_new);
     hbox_address->addWidget(button_clipboard);
     
-    /* Balance: <balance> */
+    // Balance: <balance>
     QHBoxLayout *hbox_balance = new QHBoxLayout();
     hbox_balance->addWidget(new QLabel(tr("Balance:")));
     hbox_balance->addSpacing(5);/* Add some spacing between the label and the text */
@@ -94,15 +95,13 @@ BitcoinGUI::BitcoinGUI(QWidget *parent):
     vbox->addLayout(hbox_address);
     vbox->addLayout(hbox_balance);
 
-    transaction_model = new TransactionTableModel(this);
-
     vbox->addWidget(createTabs());
 
     QWidget *centralwidget = new QWidget(this);
     centralwidget->setLayout(vbox);
     setCentralWidget(centralwidget);
     
-    /* Create status bar */
+    // Create status bar
     statusBar();
     
     labelConnections = new QLabel();
@@ -121,7 +120,7 @@ BitcoinGUI::BitcoinGUI(QWidget *parent):
     statusBar()->addPermanentWidget(labelBlocks);
     statusBar()->addPermanentWidget(labelTransactions);
      
-    /* Action bindings */
+    // Action bindings
     connect(button_new, SIGNAL(clicked()), this, SLOT(newAddressClicked()));
     connect(button_clipboard, SIGNAL(clicked()), this, SLOT(copyClipboardClicked()));
 
@@ -134,22 +133,24 @@ void BitcoinGUI::createActions()
     sendcoins = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
     addressbook = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
     about = new QAction(QIcon(":/icons/bitcoin"), tr("&About"), this);
-    receiving_addresses = new QAction(QIcon(":/icons/receiving-addresses"), tr("Your &Receiving Addresses..."), this);
+    receivingAddresses = new QAction(QIcon(":/icons/receiving-addresses"), tr("Your &Receiving Addresses..."), this);
     options = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
-    openBitCoin = new QAction(QIcon(":/icons/bitcoin"), "Open Bitcoin", this);
+    openBitcoin = new QAction(QIcon(":/icons/bitcoin"), "Open &Bitcoin", this);
 
     connect(quit, SIGNAL(triggered()), qApp, SLOT(quit()));
     connect(sendcoins, SIGNAL(triggered()), this, SLOT(sendcoinsClicked()));
     connect(addressbook, SIGNAL(triggered()), this, SLOT(addressbookClicked()));
-    connect(receiving_addresses, SIGNAL(triggered()), this, SLOT(receivingAddressesClicked()));
+    connect(receivingAddresses, SIGNAL(triggered()), this, SLOT(receivingAddressesClicked()));
     connect(options, SIGNAL(triggered()), this, SLOT(optionsClicked()));
     connect(about, SIGNAL(triggered()), this, SLOT(aboutClicked()));
+    connect(openBitcoin, SIGNAL(triggered()), this, SLOT(show()));
 }
 
 void BitcoinGUI::setModel(ClientModel *model)
 {
     this->model = model;
 
+    // Keep up to date with client
     setBalance(model->getBalance());
     connect(model, SIGNAL(balanceChanged(qint64)), this, SLOT(setBalance(qint64)));
 
@@ -165,14 +166,17 @@ void BitcoinGUI::setModel(ClientModel *model)
     setAddress(model->getAddress());
     connect(model, SIGNAL(addressChanged(QString)), this, SLOT(setAddress(QString)));
 
-    /* Report errors from network/worker thread */
+    // Report errors from network/worker thread
     connect(model, SIGNAL(error(QString,QString)), this, SLOT(error(QString,QString)));    
+
+    // Put transaction list in tabs
+    setTabsModel(model->getTransactionTableModel());
 }
 
 void BitcoinGUI::createTrayIcon()
 {
     QMenu *trayIconMenu = new QMenu(this);
-    trayIconMenu->addAction(openBitCoin);
+    trayIconMenu->addAction(openBitcoin);
     trayIconMenu->addAction(sendcoins);
     trayIconMenu->addAction(options);
     trayIconMenu->addSeparator();
@@ -181,23 +185,48 @@ void BitcoinGUI::createTrayIcon()
     trayIcon = new QSystemTrayIcon(this);
     trayIcon->setContextMenu(trayIconMenu);
     trayIcon->setIcon(QIcon(":/icons/toolbar"));
+    connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
+            this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
     trayIcon->show();
 }
 
+void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
+{
+    if(reason == QSystemTrayIcon::DoubleClick)
+    {
+        // Doubleclick on system tray icon triggers "open bitcoin"
+        openBitcoin->trigger();
+    }
+}
+
 QWidget *BitcoinGUI::createTabs()
 {
-    QStringList tab_filters, tab_labels;
-    tab_filters << "^."
-            << "^["+TransactionTableModel::Sent+TransactionTableModel::Received+"]"
-            << "^["+TransactionTableModel::Sent+"]"
-            << "^["+TransactionTableModel::Received+"]";
+    QStringList tab_labels;
     tab_labels  << tr("All transactions")
                 << tr("Sent/Received")
                 << tr("Sent")
                 << tr("Received");
-    QTabWidget *tabs = new QTabWidget(this);
 
+    QTabWidget *tabs = new QTabWidget(this);
     for(int i = 0; i < tab_labels.size(); ++i)
+    {
+        QTableView *view = new QTableView(this);
+        tabs->addTab(view, tab_labels.at(i));
+        transactionViews.append(view);
+    }
+
+    return tabs;
+}
+
+void BitcoinGUI::setTabsModel(QAbstractItemModel *transaction_model)
+{
+    QStringList tab_filters;
+    tab_filters << "^."
+            << "^["+TransactionTableModel::Sent+TransactionTableModel::Received+"]"
+            << "^["+TransactionTableModel::Sent+"]"
+            << "^["+TransactionTableModel::Received+"]";
+
+    for(int i = 0; i < transactionViews.size(); ++i)
     {
         QSortFilterProxyModel *proxy_model = new QSortFilterProxyModel(this);
         proxy_model->setSourceModel(transaction_model);
@@ -206,7 +235,7 @@ QWidget *BitcoinGUI::createTabs()
         proxy_model->setFilterRegExp(QRegExp(tab_filters.at(i)));
         proxy_model->setSortRole(Qt::EditRole);
 
-        QTableView *transaction_table = new QTableView(this);
+        QTableView *transaction_table = transactionViews.at(i);
         transaction_table->setModel(proxy_model);
         transaction_table->setSelectionBehavior(QAbstractItemView::SelectRows);
         transaction_table->setSelectionMode(QAbstractItemView::ExtendedSelection);
@@ -224,10 +253,7 @@ QWidget *BitcoinGUI::createTabs()
                 TransactionTableModel::Debit, 79);
         transaction_table->horizontalHeader()->resizeSection(
                 TransactionTableModel::Credit, 79);
-
-        tabs->addTab(transaction_table, tab_labels.at(i));
     }
-    return tabs;
 }
 
 void BitcoinGUI::sendcoinsClicked()
@@ -273,7 +299,7 @@ void BitcoinGUI::newAddressClicked()
     if(dlg.exec())
     {
         QString newAddress = dlg.saveCurrentRow();
-        /* Set returned address as new default address */
+        // Set returned address as new default addres
         if(!newAddress.isEmpty())
         {
             model->setAddress(newAddress);
@@ -283,7 +309,7 @@ void BitcoinGUI::newAddressClicked()
 
 void BitcoinGUI::copyClipboardClicked()
 {
-    /* Copy text in address to clipboard */
+    // Copy text in address to clipboard
     QApplication::clipboard()->setText(address->text());
 }
 
@@ -314,8 +340,43 @@ void BitcoinGUI::setNumTransactions(int count)
 
 void BitcoinGUI::error(const QString &title, const QString &message)
 {
-    /* Report errors from network/worker thread */
+    // Report errors from network/worker thread
+    if(trayIcon->supportsMessages())
+    {
+        // Show as "balloon" message if possible
+        trayIcon->showMessage(title, message, QSystemTrayIcon::Critical);
+    } else {
+        // Fall back to old fashioned popup dialog if not
         QMessageBox::critical(this, title,
             message,
             QMessageBox::Ok, QMessageBox::Ok);
     }
+}
+
+void BitcoinGUI::changeEvent(QEvent *e)
+{
+    if (e->type() == QEvent::WindowStateChange)
+    {
+        if(model->getOptionsModel()->getMinimizeToTray())
+        {
+            if (isMinimized())
+            {
+                hide();
+                e->ignore();
+            } else {
+                e->accept();
+            }
+        }
+    }
+    QMainWindow::changeEvent(e);
+}
+
+void BitcoinGUI::closeEvent(QCloseEvent *event)
+{
+    if(!model->getOptionsModel()->getMinimizeToTray() &&
+       !model->getOptionsModel()->getMinimizeOnClose())
+    {
+        qApp->quit();
+    }
+    QMainWindow::closeEvent(event);
+}

gui/src/clientmodel.cpp

@@ -3,11 +3,13 @@
 #include "guiconstants.h"
 #include "optionsmodel.h"
 #include "addresstablemodel.h"
+#include "transactiontablemodel.h"
 
 #include <QTimer>
 
 ClientModel::ClientModel(QObject *parent) :
-    QObject(parent), optionsModel(0), addressTableModel(0)
+    QObject(parent), optionsModel(0), addressTableModel(0),
+    transactionTableModel(0)
 {
     /* Until signal notifications is built into the bitcoin core,
        simply update everything after polling using a timer.
@@ -18,6 +20,7 @@ ClientModel::ClientModel(QObject *parent) :
 
     optionsModel = new OptionsModel(this);
     addressTableModel = new AddressTableModel(this);
+    transactionTableModel = new TransactionTableModel(this);
 }
 
 qint64 ClientModel::getBalance()
@@ -140,3 +143,8 @@ AddressTableModel *ClientModel::getAddressTableModel()
 {
     return addressTableModel;
 }
+
+TransactionTableModel *ClientModel::getTransactionTableModel()
+{
+    return transactionTableModel;
+}

gui/src/optionsdialog.cpp

@@ -207,6 +207,10 @@ MainOptionsPage::MainOptionsPage(QWidget *parent):
 
     connect(connect_socks4, SIGNAL(toggled(bool)), proxy_ip, SLOT(setEnabled(bool)));
     connect(connect_socks4, SIGNAL(toggled(bool)), proxy_port, SLOT(setEnabled(bool)));
+
+#ifndef USE_UPNP
+    map_port_upnp->setDisabled(true);
+#endif
 }
 
 void MainOptionsPage::setMapper(MonitoredDataMapper *mapper)

gui/src/optionsmodel.cpp

@@ -1,5 +1,6 @@
 #include "optionsmodel.h"
 #include "main.h"
+#include "net.h"
 
 #include <QDebug>
 
@@ -47,6 +48,7 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
     bool successful = true; /* set to false on parse error */
     if(role == Qt::EditRole)
     {
+        CWalletDB walletdb;
         switch(index.row())
         {
         case StartAtStartup:
@@ -54,15 +56,22 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
             break;
         case MinimizeToTray:
             fMinimizeToTray = value.toBool();
+            walletdb.WriteSetting("fMinimizeToTray", fMinimizeToTray);
             break;
         case MapPortUPnP:
             fUseUPnP = value.toBool();
+            walletdb.WriteSetting("fUseUPnP", fUseUPnP);
+#ifdef USE_UPNP
+            MapPort(fUseUPnP);
+#endif
             break;
         case MinimizeOnClose:
             fMinimizeOnClose = value.toBool();
+            walletdb.WriteSetting("fMinimizeOnClose", fMinimizeOnClose);
             break;
         case ConnectSOCKS4:
             fUseProxy = value.toBool();
+            walletdb.WriteSetting("fUseProxy", fUseProxy);
             break;
         case ProxyIP:
             {
@@ -71,6 +80,7 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
                 if (addr.ip != INADDR_NONE)
                 {
                     addrProxy.ip = addr.ip;
+                    walletdb.WriteSetting("addrProxy", addrProxy);
                 } else {
                     successful = false;
                 }
@@ -82,6 +92,7 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
                 if (nPort > 0 && nPort < USHRT_MAX)
                 {
                     addrProxy.port = htons(nPort);
+                    walletdb.WriteSetting("addrProxy", addrProxy);
                 } else {
                     successful = false;
                 }
@@ -92,6 +103,7 @@ bool OptionsModel::setData(const QModelIndex & index, const QVariant & value, in
                 if(ParseMoney(value.toString().toStdString(), retval))
                 {
                     nTransactionFee = retval;
+                    walletdb.WriteSetting("nTransactionFee", nTransactionFee);
                 } else {
                     successful = false; /* parse error */
                 }
@@ -111,12 +123,12 @@ qint64 OptionsModel::getTransactionFee()
     return nTransactionFee;
 }
 
-bool getMinimizeToTray()
+bool OptionsModel::getMinimizeToTray()
 {
     return fMinimizeToTray;
 }
 
-bool getMinimizeOnClose()
+bool OptionsModel::getMinimizeOnClose()
 {
     return fMinimizeOnClose;
 }