qt, rpc, build, test: add Dashb0rd and metrics RPC with sparklines

src/Makefile.qt.include

@@ -108,6 +108,8 @@ QT_MOC_CPP = \
   qt/moc_coincontroldialog.cpp \
   qt/moc_coincontroltreewidget.cpp \
   qt/moc_csvmodelwriter.cpp \
+  qt/moc_dashb0rd.cpp \
+  qt/moc_dashb0rdpage.cpp \
   qt/moc_editaddressdialog.cpp \
   qt/moc_guiutil.cpp \
   qt/moc_intro.cpp \
@@ -131,6 +133,7 @@ QT_MOC_CPP = \
   qt/moc_sendcoinsdialog.cpp \
   qt/moc_sendcoinsentry.cpp \
   qt/moc_signverifymessagedialog.cpp \
+  qt/moc_sparklinewidget.cpp \
   qt/moc_splashscreen.cpp \
   qt/moc_trafficgraphwidget.cpp \
   qt/moc_transactiondesc.cpp \
@@ -175,6 +178,8 @@ BITCOIN_QT_H = \
   qt/coincontroldialog.h \
   qt/coincontroltreewidget.h \
   qt/csvmodelwriter.h \
+  qt/dashb0rd.h \
+  qt/dashb0rdpage.h \
   qt/editaddressdialog.h \
   qt/guiconstants.h \
   qt/guiutil.h \
@@ -201,6 +206,7 @@ BITCOIN_QT_H = \
   qt/sendcoinsdialog.h \
   qt/sendcoinsentry.h \
   qt/signverifymessagedialog.h \
+  qt/sparklinewidget.h \
   qt/splashscreen.h \
   qt/trafficgraphwidget.h \
   qt/transactiondesc.h \
@@ -286,6 +292,8 @@ BITCOIN_QT_BASE_CPP = \
   qt/bitcoinunits.cpp \
   qt/clientmodel.cpp \
   qt/csvmodelwriter.cpp \
+  qt/dashb0rd.cpp \
+  qt/dashb0rdpage.cpp \
   qt/guiutil.cpp \
   qt/intro.cpp \
   qt/modaloverlay.cpp \
@@ -298,6 +306,7 @@ BITCOIN_QT_BASE_CPP = \
   qt/qvalidatedlineedit.cpp \
   qt/qvaluecombobox.cpp \
   qt/rpcconsole.cpp \
+  qt/sparklinewidget.cpp \
   qt/splashscreen.cpp \
   qt/trafficgraphwidget.cpp \
   qt/utilitydialog.cpp \

src/qt/bitcoingui.cpp

@@ -93,6 +93,7 @@ BitcoinGUI::BitcoinGUI(const PlatformStyle *_platformStyle, const NetworkStyle *
     appMenuBar(0),
     overviewAction(0),
     historyAction(0),
+    dashb0rdAction(0),
     quitAction(0),
     sendCoinsAction(0),
     sendCoinsMenuAction(0),
@@ -327,6 +328,13 @@ void BitcoinGUI::createActions()
     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
     tabGroup->addAction(historyAction);
 
+    dashb0rdAction = new QAction(platformStyle->SingleColorIcon(":/icons/about"), tr("&Dashb0rd"), this);
+    dashb0rdAction->setStatusTip(tr("View dashboard metrics"));
+    dashb0rdAction->setToolTip(dashb0rdAction->statusTip());
+    dashb0rdAction->setCheckable(true);
+    dashb0rdAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
+    tabGroup->addAction(dashb0rdAction);
+
 #ifdef ENABLE_WALLET
     // These showNormalIfMinimized are needed because Send Coins and Receive Coins
     // can be triggered from the tray menu, and need to show the GUI to be useful.
@@ -342,6 +350,8 @@ void BitcoinGUI::createActions()
     connect(receiveCoinsMenuAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
+    connect(dashb0rdAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
+    connect(dashb0rdAction, SIGNAL(triggered()), this, SLOT(gotoDashb0rdPage()));
 #endif // ENABLE_WALLET
 
     quitAction = new QAction(platformStyle->TextColorIcon(":/icons/quit"), tr("E&xit"), this);
@@ -484,6 +494,7 @@ void BitcoinGUI::createToolBars()
         toolbar->addAction(sendCoinsAction);
         toolbar->addAction(receiveCoinsAction);
         toolbar->addAction(historyAction);
+        toolbar->addAction(dashb0rdAction);
         overviewAction->setChecked(true);
     }
 }
@@ -714,6 +725,12 @@ void BitcoinGUI::gotoHistoryPage()
     if (walletFrame) walletFrame->gotoHistoryPage();
 }
 
+void BitcoinGUI::gotoDashb0rdPage()
+{
+    dashb0rdAction->setChecked(true);
+    if (walletFrame) walletFrame->gotoDashb0rdPage();
+}
+
 void BitcoinGUI::gotoReceiveCoinsPage()
 {
     receiveCoinsAction->setChecked(true);

src/qt/bitcoingui.h

@@ -95,6 +95,7 @@ class BitcoinGUI : public QMainWindow
     QMenuBar *appMenuBar;
     QAction *overviewAction;
     QAction *historyAction;
+    QAction *dashb0rdAction;
     QAction *quitAction;
     QAction *sendCoinsAction;
     QAction *sendCoinsMenuAction;
@@ -200,6 +201,8 @@ private Q_SLOTS:
     void gotoOverviewPage();
     /** Switch to history (transactions) page */
     void gotoHistoryPage();
+    /** Switch to dashboard page */
+    void gotoDashb0rdPage();
     /** Switch to receive coins page */
     void gotoReceiveCoinsPage();
     /** Switch to send coins page */

src/qt/dashb0rd.cpp

@@ -0,0 +1,41 @@
+// Copyright (c) 2011-2016 The Bitcoin Core developers
+// Copyright (c) 2021-2026 The Dogecoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "dashb0rd.h"
+
+#include "dashb0rdpage.h"
+
+#include <QVBoxLayout>
+
+Dashb0rd::Dashb0rd(const PlatformStyle* platformStyle, QWidget* parent)
+    : QWidget(parent),
+      m_platformStyle(platformStyle),
+      m_page(nullptr)
+{
+    // Embed the dashboard page directly so this wrapper can forward model updates.
+    QVBoxLayout* root = new QVBoxLayout(this);
+    root->setContentsMargins(0, 0, 0, 0);
+    root->setSpacing(0);
+
+    // Constructor order for Dashb0rdPage is (platformStyle, parent).
+    m_page = new Dashb0rdPage(m_platformStyle, this);
+    root->addWidget(m_page);
+}
+
+Dashb0rd::~Dashb0rd()
+{
+}
+
+void Dashb0rd::setClientModel(ClientModel* model)
+{
+    // Forward the shared client model to the underlying dashboard page.
+    if (m_page) m_page->setClientModel(model);
+}
+
+void Dashb0rd::setWalletModel(WalletModel* model)
+{
+    // Forward the wallet model so page-level wallet features can use it.
+    if (m_page) m_page->setWalletModel(model);
+}

src/qt/dashb0rd.h

@@ -0,0 +1,32 @@
+// Copyright (c) 2011-2016 The Bitcoin Core developers
+// Copyright (c) 2021-2026 The Dogecoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_QT_DASHB0RD_H
+#define BITCOIN_QT_DASHB0RD_H
+
+#include <QWidget>
+
+class ClientModel;
+class WalletModel;
+class PlatformStyle;
+class Dashb0rdPage;
+
+class Dashb0rd : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit Dashb0rd(const PlatformStyle* platformStyle, QWidget* parent = nullptr);
+    ~Dashb0rd();
+
+    void setClientModel(ClientModel* model);
+    void setWalletModel(WalletModel* model);
+
+private:
+    const PlatformStyle* m_platformStyle;
+    Dashb0rdPage* m_page;
+};
+
+#endif // BITCOIN_QT_DASHB0RD_H