Implement Minimize to tray / Minimize on close

gui/include/bitcoingui.h

@@ -27,6 +27,11 @@ public:
         Sent = 2,
         Received = 3
     } TabIndex;
+
+protected:
+    void changeEvent(QEvent *e);
+    void closeEvent(QCloseEvent *event);
+
 private:
     TransactionTableModel *transaction_model;
     ClientModel *model;
@@ -41,9 +46,9 @@ private:
     QAction *sendcoins;
     QAction *addressbook;
     QAction *about;
-    QAction *receiving_addresses;
+    QAction *receivingAddresses;
     QAction *options;
-    QAction *openBitCoin;
+    QAction *openBitcoin;
 
     QSystemTrayIcon *trayIcon;
 
@@ -64,9 +69,9 @@ private slots:
     void optionsClicked();
     void receivingAddressesClicked();
     void aboutClicked();
-
     void newAddressClicked();
     void copyClipboardClicked();
+    void trayIconActivated(QSystemTrayIcon::ActivationReason reason);
     void error(const QString &title, const QString &message);
 };
 

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