[gui] Make proxy icon from statusbar clickable

Clicking on the proxy icon will open settings showing the network tab
Create enum Tab in OptionsModel
Use new connect syntax
Use lambda for private slots

src/qt/bitcoingui.cpp

@@ -146,7 +146,7 @@ BitcoinGUI::BitcoinGUI(interfaces::Node& node, const PlatformStyle *_platformSty
     unitDisplayControl = new UnitDisplayStatusBarControl(platformStyle);
     labelWalletEncryptionIcon = new QLabel();
     labelWalletHDStatusIcon = new QLabel();
-    labelProxyIcon = new QLabel();
+    labelProxyIcon = new GUIUtil::ClickableLabel();
     connectionsControl = new GUIUtil::ClickableLabel();
     labelBlocksIcon = new GUIUtil::ClickableLabel();
     if(enableWallet)
@@ -193,7 +193,12 @@ BitcoinGUI::BitcoinGUI(interfaces::Node& node, const PlatformStyle *_platformSty
     // Subscribe to notifications from core
     subscribeToCoreSignals();
 
-    connect(connectionsControl, SIGNAL(clicked(QPoint)), this, SLOT(toggleNetworkActive()));
+    connect(connectionsControl, &GUIUtil::ClickableLabel::clicked, [this] {
+        m_node.setNetworkActive(!m_node.getNetworkActive());
+    });
+    connect(labelProxyIcon, &GUIUtil::ClickableLabel::clicked, [this] {
+        openOptionsDialogWithTab(OptionsDialog::TAB_NETWORK);
+    });
 
     modalOverlay = new ModalOverlay(this->centralWidget());
 #ifdef ENABLE_WALLET
@@ -635,12 +640,7 @@ void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 
 void BitcoinGUI::optionsClicked()
 {
-    if(!clientModel || !clientModel->getOptionsModel())
-        return;
-
-    OptionsDialog dlg(this, enableWallet);
-    dlg.setModel(clientModel->getOptionsModel());
-    dlg.exec();
+    openOptionsDialogWithTab(OptionsDialog::TAB_MAIN);
 }
 
 void BitcoinGUI::aboutClicked()
@@ -764,6 +764,17 @@ void BitcoinGUI::updateHeadersSyncProgressLabel()
         progressBarLabel->setText(tr("Syncing Headers (%1%)...").arg(QString::number(100.0 / (headersTipHeight+estHeadersLeft)*headersTipHeight, 'f', 1)));
 }
 
+void BitcoinGUI::openOptionsDialogWithTab(OptionsDialog::Tab tab)
+{
+    if (!clientModel || !clientModel->getOptionsModel())
+        return;
+
+    OptionsDialog dlg(this, enableWallet);
+    dlg.setCurrentTab(tab);
+    dlg.setModel(clientModel->getOptionsModel());
+    dlg.exec();
+}
+
 void BitcoinGUI::setNumBlocks(int count, const QDateTime& blockDate, double nVerificationProgress, bool header)
 {
     if (modalOverlay)
@@ -1231,11 +1242,6 @@ void BitcoinGUI::unsubscribeFromCoreSignals()
     m_handler_question->disconnect();
 }
 
-void BitcoinGUI::toggleNetworkActive()
-{
-    m_node.setNetworkActive(!m_node.getNetworkActive());
-}
-
 UnitDisplayStatusBarControl::UnitDisplayStatusBarControl(const PlatformStyle *platformStyle) :
     optionsModel(0),
     menu(0)

src/qt/bitcoingui.h

@@ -9,6 +9,8 @@
 #include <config/bitcoin-config.h>
 #endif
 
+#include <qt/optionsdialog.h>
+
 #include <amount.h>
 
 #include <QLabel>
@@ -45,6 +47,10 @@ class QProgressBar;
 class QProgressDialog;
 QT_END_NAMESPACE
 
+namespace GUIUtil {
+class ClickableLabel;
+}
+
 /**
   Bitcoin GUI main class. This class represents the main window of the Bitcoin UI. It communicates with both the client and
   wallet models to give the user an up-to-date view of the current core state.
@@ -93,8 +99,8 @@ private:
     UnitDisplayStatusBarControl* unitDisplayControl = nullptr;
     QLabel* labelWalletEncryptionIcon = nullptr;
     QLabel* labelWalletHDStatusIcon = nullptr;
-    QLabel* labelProxyIcon = nullptr;
-    QLabel* connectionsControl = nullptr;
+    GUIUtil::ClickableLabel* labelProxyIcon = nullptr;
+    GUIUtil::ClickableLabel* connectionsControl = nullptr;
     QLabel* labelBlocksIcon = nullptr;
     QLabel* progressBarLabel = nullptr;
     QProgressBar* progressBar = nullptr;
@@ -166,6 +172,9 @@ private:
 
     void updateHeadersSyncProgressLabel();
 
+    /** Open the OptionsDialog on the specified tab index */
+    void openOptionsDialogWithTab(OptionsDialog::Tab tab);
+
 Q_SIGNALS:
     /** Signal raised when a URI was entered or dragged to the GUI */
     void receivedURI(const QString &uri);
@@ -266,9 +275,6 @@ 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();
 };
 

src/qt/optionsdialog.cpp

@@ -170,6 +170,16 @@ void OptionsDialog::setModel(OptionsModel *_model)
     connect(ui->thirdPartyTxUrls, SIGNAL(textChanged(const QString &)), this, SLOT(showRestartWarning()));
 }
 
+void OptionsDialog::setCurrentTab(OptionsDialog::Tab tab)
+{
+    QWidget *tab_widget = nullptr;
+    if (tab == OptionsDialog::Tab::TAB_NETWORK) tab_widget = ui->tabNetwork;
+    if (tab == OptionsDialog::Tab::TAB_MAIN) tab_widget = ui->tabMain;
+    if (tab_widget && ui->tabWidget->currentWidget() != tab_widget) {
+        ui->tabWidget->setCurrentWidget(tab_widget);
+    }
+}
+
 void OptionsDialog::setMapper()
 {
     /* Main */

src/qt/optionsdialog.h

@@ -40,8 +40,14 @@ public:
     explicit OptionsDialog(QWidget *parent, bool enableWallet);
     ~OptionsDialog();
 
+    enum Tab {
+        TAB_MAIN,
+        TAB_NETWORK,
+    };
+
     void setModel(OptionsModel *model);
     void setMapper();
+    void setCurrentTab(OptionsDialog::Tab tab);
 
 private Q_SLOTS:
     /* set OK button state (enabled / disabled) */