qt: Replace NetworkToggleStatusBarControl with generic ClickableLabel

Generalize the clickable label functionality.

We will use this to add similar functionality to the sync icon.

src/qt/bitcoingui.cpp

@@ -199,7 +199,7 @@ BitcoinGUI::BitcoinGUI(const PlatformStyle *_platformStyle, const NetworkStyle *
     unitDisplayControl = new UnitDisplayStatusBarControl(platformStyle);
     labelWalletEncryptionIcon = new QLabel();
     labelWalletHDStatusIcon = new QLabel();
-    connectionsControl = new NetworkToggleStatusBarControl();
+    connectionsControl = new GUIUtil::ClickableLabel();
     labelBlocksIcon = new QLabel();
     if(enableWallet)
     {
@@ -244,6 +244,8 @@ BitcoinGUI::BitcoinGUI(const PlatformStyle *_platformStyle, const NetworkStyle *
     // Subscribe to notifications from core
     subscribeToCoreSignals();
 
+    connect(connectionsControl, SIGNAL(clicked(QPoint)), this, SLOT(toggleNetworkActive()));
+
     modalOverlay = new ModalOverlay(this->centralWidget());
 #ifdef ENABLE_WALLET
     if(enableWallet)
@@ -490,7 +492,6 @@ void BitcoinGUI::setClientModel(ClientModel *_clientModel)
         }
 #endif // ENABLE_WALLET
         unitDisplayControl->setOptionsModel(_clientModel->getOptionsModel());
-        connectionsControl->setClientModel(_clientModel);
         
         OptionsModel* optionsModel = _clientModel->getOptionsModel();
         if(optionsModel)
@@ -517,7 +518,6 @@ void BitcoinGUI::setClientModel(ClientModel *_clientModel)
         walletFrame->setClientModel(nullptr);
 #endif // ENABLE_WALLET
         unitDisplayControl->setOptionsModel(nullptr);
-        connectionsControl->setClientModel(nullptr);
     }
 }
 
@@ -1171,6 +1171,13 @@ void BitcoinGUI::unsubscribeFromCoreSignals()
     uiInterface.ThreadSafeQuestion.disconnect(boost::bind(ThreadSafeMessageBox, this, _1, _3, _4));
 }
 
+void BitcoinGUI::toggleNetworkActive()
+{
+    if (clientModel) {
+        clientModel->setNetworkActive(!clientModel->getNetworkActive());
+    }
+}
+
 UnitDisplayStatusBarControl::UnitDisplayStatusBarControl(const PlatformStyle *platformStyle) :
     optionsModel(0),
     menu(0)
@@ -1244,16 +1251,3 @@ void UnitDisplayStatusBarControl::onMenuSelection(QAction* action)
         optionsModel->setDisplayUnit(action->data());
     }
 }
-
-void NetworkToggleStatusBarControl::mousePressEvent(QMouseEvent *event)
-{
-    if (clientModel) {
-        clientModel->setNetworkActive(!clientModel->getNetworkActive());
-    }
-}
-
-/** Lets the control know about the Client Model */
-void NetworkToggleStatusBarControl::setClientModel(ClientModel *_clientModel)
-{
-    this->clientModel = _clientModel;
-}

src/qt/bitcoingui.h

@@ -26,7 +26,6 @@ class PlatformStyle;
 class RPCConsole;
 class SendCoinsRecipient;
 class UnitDisplayStatusBarControl;
-class NetworkToggleStatusBarControl;
 class WalletFrame;
 class WalletModel;
 class HelpMessageDialog;
@@ -86,7 +85,7 @@ private:
     UnitDisplayStatusBarControl *unitDisplayControl;
     QLabel *labelWalletEncryptionIcon;
     QLabel *labelWalletHDStatusIcon;
-    NetworkToggleStatusBarControl *connectionsControl;
+    QLabel *connectionsControl;
     QLabel *labelBlocksIcon;
     QLabel *progressBarLabel;
     QProgressBar *progressBar;
@@ -238,6 +237,9 @@ private Q_SLOTS:
     /** When hideTrayIcon setting is changed in OptionsModel hide or show the icon accordingly. */
     void setTrayIconVisible(bool);
 
+    /** Toggle networking */
+    void toggleNetworkActive();
+
     void showModalOverlay();
 };
 
@@ -270,17 +272,4 @@ private Q_SLOTS:
     void onMenuSelection(QAction* action);
 };
 
-class NetworkToggleStatusBarControl : public QLabel
-{
-    Q_OBJECT
-    
-public:
-    void setClientModel(ClientModel *clientModel);
-protected:
-    void mousePressEvent(QMouseEvent *event);
-    
-private:
-    ClientModel *clientModel;
-};
-
 #endif // BITCOIN_QT_BITCOINGUI_H

src/qt/guiutil.cpp

@@ -55,6 +55,7 @@
 #include <QSettings>
 #include <QTextDocument> // for Qt::mightBeRichText
 #include <QThread>
+#include <QMouseEvent>
 
 #if QT_VERSION < 0x050000
 #include <QUrl>
@@ -986,4 +987,10 @@ QString formateNiceTimeOffset(qint64 secs)
     }
     return timeBehindText;
 }
+
+void ClickableLabel::mousePressEvent(QMouseEvent *event)
+{
+    Q_EMIT clicked(event->pos());
+}
+
 } // namespace GUIUtil

src/qt/guiutil.h

@@ -14,6 +14,7 @@
 #include <QProgressBar>
 #include <QString>
 #include <QTableView>
+#include <QLabel>
 
 #include <boost/filesystem.hpp>
 
@@ -215,6 +216,19 @@ namespace GUIUtil
     typedef QProgressBar ProgressBar;
 #endif
 
+    class ClickableLabel : public QLabel
+    {
+        Q_OBJECT
+
+    Q_SIGNALS:
+        /** Emitted when the label is clicked. The relative mouse coordinates of the click are
+         * passed to the signal.
+         */
+        void clicked(const QPoint& point);
+    protected:
+        void mousePressEvent(QMouseEvent *event);
+    };
+
 } // namespace GUIUtil
 
 #endif // BITCOIN_QT_GUIUTIL_H