qt: remove awkward way of setting GUI pages

Selecting the button for a pages was going through bitcoingui->walletframe->walletview->bitcoingui.
Because of this, the actions for the pages had to be exposed on the BitcoinGUI object.

src/qt/bitcoingui.cpp

@@ -447,26 +447,31 @@ void BitcoinGUI::aboutClicked()
 
 void BitcoinGUI::gotoOverviewPage()
 {
+    overviewAction->setChecked(true);
     if (walletFrame) walletFrame->gotoOverviewPage();
 }
 
 void BitcoinGUI::gotoHistoryPage()
 {
+    historyAction->setChecked(true);
     if (walletFrame) walletFrame->gotoHistoryPage();
 }
 
 void BitcoinGUI::gotoAddressBookPage()
 {
+    addressBookAction->setChecked(true);
     if (walletFrame) walletFrame->gotoAddressBookPage();
 }
 
 void BitcoinGUI::gotoReceiveCoinsPage()
 {
+    receiveCoinsAction->setChecked(true);
     if (walletFrame) walletFrame->gotoReceiveCoinsPage();
 }
 
 void BitcoinGUI::gotoSendCoinsPage(QString addr)
 {
+    sendCoinsAction->setChecked(true);
     if (walletFrame) walletFrame->gotoSendCoinsPage(addr);
 }
 

src/qt/bitcoingui.h

@@ -61,14 +61,6 @@ public:
 
     void removeAllWallets();
 
-    /** Used by WalletView to allow access to needed QActions */
-    // Todo: Use Qt signals for these
-    QAction * getOverviewAction() { return overviewAction; }
-    QAction * getHistoryAction() { return historyAction; }
-    QAction * getAddressBookAction() { return addressBookAction; }
-    QAction * getReceiveCoinsAction() { return receiveCoinsAction; }
-    QAction * getSendCoinsAction() { return sendCoinsAction; }
-
 protected:
     void changeEvent(QEvent *e);
     void closeEvent(QCloseEvent *event);

src/qt/walletframe.cpp

@@ -44,7 +44,8 @@ bool WalletFrame::addWallet(const QString& name, WalletModel *walletModel)
     walletView->setWalletModel(walletModel);
     walletView->showOutOfSyncWarning(bOutOfSync);
 
-    walletView->gotoOverviewPage(); /* XXX we should go to the currently selected page */
+     /* TODO we should goto the currently selected page once dynamically adding wallets is supported */
+    walletView->gotoOverviewPage();
     walletStack->addWidget(walletView);
     mapWalletViews[name] = walletView;
 
@@ -65,6 +66,16 @@ bool WalletFrame::setCurrentWallet(const QString& name)
     return true;
 }
 
+bool WalletFrame::removeWallet(const QString &name)
+{
+    if (mapWalletViews.count(name) == 0)
+        return false;
+
+    WalletView *walletView = mapWalletViews.take(name);
+    walletStack->removeWidget(walletView);
+    return true;
+}
+
 void WalletFrame::removeAllWallets()
 {
     QMap<QString, WalletView*>::const_iterator i;

src/qt/walletframe.h

@@ -32,7 +32,7 @@ public:
 
     bool addWallet(const QString& name, WalletModel *walletModel);
     bool setCurrentWallet(const QString& name);
-
+    bool removeWallet(const QString &name);
     void removeAllWallets();
 
     bool handlePaymentRequest(const SendCoinsRecipient& recipient);

src/qt/walletview.cpp

@@ -64,7 +64,6 @@ WalletView::WalletView(QWidget *parent):
     addWidget(sendCoinsPage);
 
     // Clicking on a transaction on the overview page simply sends you to transaction history page
-    connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), transactionView, SLOT(focusTransaction(QModelIndex)));
 
     // Double-clicking on a transaction on the transaction history page shows details
@@ -87,6 +86,10 @@ WalletView::~WalletView()
 void WalletView::setBitcoinGUI(BitcoinGUI *gui)
 {
     this->gui = gui;
+    if(gui)
+    {
+        connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), gui, SLOT(gotoHistoryPage()));
+    }
 }
 
 void WalletView::setClientModel(ClientModel *clientModel)
@@ -103,7 +106,7 @@ void WalletView::setClientModel(ClientModel *clientModel)
 void WalletView::setWalletModel(WalletModel *walletModel)
 {
     this->walletModel = walletModel;
-    if (walletModel)
+    if (walletModel && gui)
     {
         // Receive and report messages from wallet thread
         connect(walletModel, SIGNAL(message(QString,QString,unsigned int)), gui, SLOT(message(QString,QString,unsigned int)));
@@ -145,31 +148,26 @@ void WalletView::incomingTransaction(const QModelIndex& parent, int start, int /
 
 void WalletView::gotoOverviewPage()
 {
-    gui->getOverviewAction()->setChecked(true);
     setCurrentWidget(overviewPage);
 }
 
 void WalletView::gotoHistoryPage()
 {
-    gui->getHistoryAction()->setChecked(true);
     setCurrentWidget(transactionsPage);
 }
 
 void WalletView::gotoAddressBookPage()
 {
-    gui->getAddressBookAction()->setChecked(true);
     setCurrentWidget(addressBookPage);
 }
 
 void WalletView::gotoReceiveCoinsPage()
 {
-    gui->getReceiveCoinsAction()->setChecked(true);
     setCurrentWidget(receiveCoinsPage);
 }
 
 void WalletView::gotoSendCoinsPage(QString addr)
 {
-    gui->getSendCoinsAction()->setChecked(true);
     setCurrentWidget(sendCoinsPage);
 
     if (!addr.isEmpty())