Qt: Add GUI feedback and control of network activity state.

Add getNetworkActive()/setNetworkActive() method to client model.
Send network active status through NotifyNetworkActiveChanged.
Indicate in tool tip of gui status bar network indicator whether network activity is disabled.
Indicate in debug window whether network activity is disabled and add button to allow user to toggle network activity state.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/qt/rpcconsole.h b/src/qt/rpcconsole.h
index 50224a1cc0..2a5686b672 100644
--- a/src/qt/rpcconsole.h
+++ b/src/qt/rpcconsole.h
@@ -61,6 +61,8 @@ protected:
 private Q_SLOTS:
     void on_lineEdit_returnPressed();
     void on_tabWidget_currentChanged(int index);
+    /** toggle network activity */
+    void on_toggleNetworkActiveButton_clicked();
     /** open the debug.log from the current datadir */
     void on_openDebugLogfileButton_clicked();
     /** change the time range of the network traffic graph */
@@ -88,6 +90,8 @@ public Q_SLOTS:
     void message(int category, const QString &message, bool html = false);
     /** Set number of connections shown in the UI */
     void setNumConnections(int count);
+    /** Set network state shown in the UI */
+    void setNetworkActive(bool networkActive);
     /** Set number of blocks and last block date shown in the UI */
     void setNumBlocks(int count, const QDateTime& blockDate, double nVerificationProgress, bool headers);
     /** Set size (number of transactions and memory usage) of the mempool in the UI */
@@ -142,6 +146,9 @@ private:
     QMenu *banTableContextMenu;
     int consoleFontSize;
     QCompleter *autoCompleter;
+
+    /** Update UI with latest network info from model. */
+    void updateNetworkState();
 };
 
 #endif // BITCOIN_QT_RPCCONSOLE_H