GUI for --disable-wallet compiles and -disablewallet mode

There is not much in the GUI to be done without wallet,
though it's possible to change options, watch the sync process,
and use the debug console.

So embed the debug console in the main window.

src/qt/bitcoin.cpp

@@ -10,9 +10,11 @@
 #include "guiutil.h"
 #include "intro.h"
 #include "optionsmodel.h"
-#include "paymentserver.h"
 #include "splashscreen.h"
+#ifdef ENABLE_WALLET
+#include "paymentserver.h"
 #include "walletmodel.h"
+#endif
 
 #include "init.h"
 #include "main.h"
@@ -157,8 +159,10 @@ public:
     explicit BitcoinApplication(int &argc, char **argv);
     ~BitcoinApplication();
 
+#ifdef ENABLE_WALLET
     /// Create payment server
     void createPaymentServer();
+#endif
     /// Create options model
     void createOptionsModel();
     /// Create main window
@@ -188,12 +192,14 @@ signals:
 
 private:
     QThread *coreThread;
-    PaymentServer* paymentServer;
     OptionsModel *optionsModel;
     ClientModel *clientModel;
     BitcoinGUI *window;
-    WalletModel *walletModel;
     QTimer *pollShutdownTimer;
+#ifdef ENABLE_WALLET
+    PaymentServer* paymentServer;
+    WalletModel *walletModel;
+#endif
     int returnValue;
 
     void startThread();
@@ -246,12 +252,14 @@ void BitcoinCore::shutdown()
 BitcoinApplication::BitcoinApplication(int &argc, char **argv):
     QApplication(argc, argv),
     coreThread(0),
-    paymentServer(0),
     optionsModel(0),
     clientModel(0),
     window(0),
-    walletModel(0),
     pollShutdownTimer(0),
+#ifdef ENABLE_WALLET
+    paymentServer(0),
+    walletModel(0),
+#endif
     returnValue(0)
 {
     setQuitOnLastWindowClosed(false);
@@ -266,14 +274,21 @@ BitcoinApplication::~BitcoinApplication()
     LogPrintf("Stopped thread\n");
 
     delete window;
+    window = 0;
+#ifdef ENABLE_WALLET
     delete paymentServer;
+    paymentServer = 0;
+#endif
     delete optionsModel;
+    optionsModel = 0;
 }
 
+#ifdef ENABLE_WALLET
 void BitcoinApplication::createPaymentServer()
 {
     paymentServer = new PaymentServer(this);
 }
+#endif
 
 void BitcoinApplication::createOptionsModel()
 {
@@ -327,11 +342,13 @@ void BitcoinApplication::requestShutdown()
     LogPrintf("Requesting shutdown\n");
     window->hide();
     window->setClientModel(0);
-    window->removeAllWallets();
     pollShutdownTimer->stop();
 
+#ifdef ENABLE_WALLET
+    window->removeAllWallets();
     delete walletModel;
     walletModel = 0;
+#endif
     delete clientModel;
     clientModel = 0;
 
@@ -362,14 +379,17 @@ void BitcoinApplication::initializeResult(int retval)
         // Miscellaneous initialization after core is initialized
         optionsModel->Upgrade(); // Must be done after AppInit2
 
+#ifdef ENABLE_WALLET
         PaymentServer::LoadRootCAs();
         paymentServer->setOptionsModel(optionsModel);
+#endif
 
         emit splashFinished(window);
 
         clientModel = new ClientModel(optionsModel);
         window->setClientModel(clientModel);
 
+#ifdef ENABLE_WALLET
         if(pwalletMain)
         {
             walletModel = new WalletModel(pwalletMain, optionsModel);
@@ -380,6 +400,7 @@ void BitcoinApplication::initializeResult(int retval)
             connect(walletModel, SIGNAL(coinsSent(CWallet*,SendCoinsRecipient,QByteArray)),
                              paymentServer, SLOT(fetchPaymentACK(CWallet*,const SendCoinsRecipient&,QByteArray)));
         }
+#endif
 
         // If -min option passed, start window minimized.
         if(GetBoolArg("-min", false))
@@ -390,7 +411,7 @@ void BitcoinApplication::initializeResult(int retval)
         {
             window->show();
         }
-
+#ifdef ENABLE_WALLET
         // Now that initialization/startup is done, process any command-line
         // bitcoin: URIs or payment requests:
         connect(paymentServer, SIGNAL(receivedPaymentRequest(SendCoinsRecipient)),
@@ -400,7 +421,7 @@ void BitcoinApplication::initializeResult(int retval)
         connect(paymentServer, SIGNAL(message(QString,QString,unsigned int)),
                          window, SLOT(message(QString,QString,unsigned int)));
         QTimer::singleShot(100, paymentServer, SLOT(uiReady()));
-
+#endif
     } else {
         quit(); // Exit main loop
     }
@@ -429,9 +450,11 @@ int main(int argc, char *argv[])
     if (!SelectParamsFromCommandLine()) {
         fSelParFromCLFailed = true;
     }
+#ifdef ENABLE_WALLET
     // Parse URIs on command line -- this can affect TestNet() / RegTest() mode
     if (!PaymentServer::ipcParseCommandLine(argc, argv))
         exit(0);
+#endif
 
     bool isaTestNet = TestNet() || RegTest();
 
@@ -500,6 +523,7 @@ int main(int argc, char *argv[])
     }
     ReadConfigFile(mapArgs, mapMultiArgs);
 
+#ifdef ENABLE_WALLET
     /// 7. URI IPC sending
     // - Do this early as we don't want to bother initializing if we are just calling IPC
     // - Do this *after* setting up the data directory, as the data directory hash is used in the name
@@ -512,6 +536,7 @@ int main(int argc, char *argv[])
     // Start up the payment server early, too, so impatient users that click on
     // bitcoin: links repeatedly have their payment requests routed to this process:
     app.createPaymentServer();
+#endif
 
     /// 8. Main GUI initialization
     // Install global event filter that makes sure that long tooltips can be word-wrapped