Fetch ZEC Price for display purposes

README.md

@@ -33,7 +33,7 @@ You need a C++14 compatible compiler like g++ or clang++
 ```
 git clone https://github.com/adityapk00/zcash-qt-wallet.git
 cd zcash-qt-wallet
-/path/to/qt5/bin/qmake zcash-qt-wallet.pro CONFIG+=DEBUG
+/path/to/qt5/bin/qmake zcash-qt-wallet.pro CONFIG+=debug
 make -j$(nproc)
 
 ./zcash-qt-wallet

src/balancestablemodel.cpp

@@ -1,4 +1,5 @@
 #include "balancestablemodel.h"
+#include "settings.h"
 #include "utils.h"
 
 BalancesTableModel::BalancesTableModel(QObject *parent)
@@ -68,12 +69,22 @@ QVariant BalancesTableModel::data(const QModelIndex &index, int role) const
 		return b;	
 	}
 	
-	if (role == Qt::DisplayRole || role == Qt::ToolTipRole) {
+	if (role == Qt::DisplayRole) {
 		switch (index.column()) {
 		case 0: return std::get<0>(modeldata->at(index.row()));
 		case 1: return QVariant(std::get<1>(modeldata->at(index.row())) % " " % Utils::getTokenName());
 		}
 	}
+
+	if(role == Qt::ToolTipRole) {
+		switch (index.column()) {
+		case 0: return std::get<0>(modeldata->at(index.row()));
+		case 1: {
+				auto bal = std::get<1>(modeldata->at(index.row())).toDouble();
+				return "$ " + QString::number(bal * Settings::getInstance()->getZECPrice(), 'f', 2); // Use 'f' notation to get 2 decimal places
+			}
+		}
+	}
 	
 	return QVariant();
 }

src/mainwindow.cpp

@@ -58,7 +58,9 @@ MainWindow::MainWindow(QWidget *parent) :
     setupBalancesTab();
 
     rpc = new RPC(new QNetworkAccessManager(this), this);
-    rpc->refresh();
+    rpc->refreshZECPrice();
+
+    rpc->refresh();    
 }
 
 void MainWindow::setupStatusBar() {

src/rpc.cpp

@@ -39,6 +39,13 @@ RPC::RPC(QNetworkAccessManager* client, MainWindow* main) {
     });
     // Start at every 10s. When an operation is pending, this will change to every second
     txTimer->start(Utils::updateSpeed);  
+
+    // Set up timer to refresh Price
+    priceTimer = new QTimer(main);
+    QObject::connect(timer, &QTimer::timeout, [=]() {
+        refreshZECPrice();
+    });
+    priceTimer->start(1 * 60 * 60 * 1000);  // Every hour
 }
 
 RPC::~RPC() {
@@ -515,3 +522,68 @@ void RPC::refreshTxStatus(const QString& newOpid) {
         }
     });
 }
+
+void RPC::refreshZECPrice() {
+    QUrl cmcURL("https://api.coinmarketcap.com/v1/ticker/");
+
+    QNetworkRequest req;
+    req.setUrl(cmcURL);
+    
+    QNetworkReply *reply = restclient->get(req);
+
+    QObject::connect(reply, &QNetworkReply::finished, [=] {
+        reply->deleteLater();
+
+        try {
+            if (reply->error() != QNetworkReply::NoError) {
+                auto parsed = json::parse(reply->readAll(), nullptr, false);
+                if (!parsed.is_discarded() && !parsed["error"]["message"].is_null()) {
+                    qDebug() << QString::fromStdString(parsed["error"]["message"]);    
+                } else {
+                    qDebug() << reply->errorString();
+                }
+                Settings::getInstance()->setZECPrice(0);
+                return;
+            } 
+
+            auto all = reply->readAll();
+            
+            auto parsed = json::parse(all, nullptr, false);
+            if (parsed.is_discarded()) {
+                Settings::getInstance()->setZECPrice(0);
+                return;
+            }
+
+            for (const json& item : parsed.get<json::array_t>()) {
+                if (item["symbol"].get<json::string_t>().compare("ZEC") == 0) {
+                    QString price = QString::fromStdString(item["price_usd"].get<json::string_t>());
+                    qDebug() << "ZEC Price=" << price;
+                    Settings::getInstance()->setZECPrice(price.toDouble());
+                    return;
+                }
+            }
+        } catch (...) {
+            // If anything at all goes wrong, just set the price to 0 and move on.
+            qDebug() << QString("Caught something nasty");
+        }
+
+        // If nothing, then set the price to 0;
+        Settings::getInstance()->setZECPrice(0);
+    });
+}
+
+/*
+     .url("https://api.coinmarketcap.com/v1/ticker/")
+      .withHeaders("Accept" -> "application/json")
+      .get()
+      .map {
+        response => {
+          val prices = response.json.as[JsArray].value
+            .map(x => ((x \ "symbol").as[String], (x \ "price_usd").as[BigDecimal].setScale(2, RoundingMode.HALF_UP)))
+            .toMap
+
+          coinCodes.map { coinCode =>
+            CoinPrice(coinCode, prices.get(coinCode), Some(System.currentTimeMillis() / 1000))
+          }
+        }
+        */

src/rpc.h

@@ -20,6 +20,7 @@ public:
     void refresh();             // Refresh all transactions
     void refreshTxStatus(const QString& newOpid = QString());     // Refresh the status of all pending txs.
     void refreshAddresses();    // Refresh wallet Z-addrs
+    void refreshZECPrice();
 
     void sendZTransaction   (json params, const std::function<void(json)>& cb);
 
@@ -38,8 +39,8 @@ private:
     void doSendRPC  (const json& payload, const std::function<void(json)>& cb);
 
     void refreshBalances();
-    void refreshTransactions();
+    void refreshTransactions();    
-    
+
 	bool processUnspent	(const json& reply);
 	void updateUI		(bool anyUnconfirmed);
 
@@ -52,7 +53,6 @@ private:
     void getTransactions        (const std::function<void(json)>& cb);
     void getZAddresses          (const std::function<void(json)>& cb);
 
-
     void handleConnectionError  (const QString& error);
     void handleTxError          (const QString& error);
 
@@ -70,6 +70,7 @@ private:
 
     QTimer*                     timer;
     QTimer*                     txTimer;
+    QTimer*                     priceTimer;
 
     Ui::MainWindow*             ui;
     MainWindow*                 main;

src/scripts/mkrelease.sh

@@ -52,4 +52,5 @@ if [ -f bin/linux-zcash-qt-wallet-v$APP_VERSION.tar.gz ] ; then
 else
     echo "[ERROR]"
     exit 1
-fi
+fi
+

src/settings.h

@@ -31,6 +31,9 @@ public:
 
 	const QString& getZcashdConfLocation() { return confLocation; }
 
+	void   setZECPrice(double p) { zecPrice = p; }
+	double getZECPrice() { return zecPrice; }
+
 private:
     // This class can only be accessed through Settings::getInstance()
     Settings() = default;
@@ -48,6 +51,8 @@ private:
 
     bool _isTestnet = false;
 	bool _isSyncing = false;
+
+	double zecPrice = 0.0;
 };
 
 #endif // SETTINGS_H

src/txtablemodel.cpp

@@ -1,4 +1,5 @@
 #include "txtablemodel.h"
+#include "settings.h"
 #include "utils.h"
 
 TxTableModel::TxTableModel(QObject *parent)
@@ -53,7 +54,13 @@ void TxTableModel::setNewData(QList<TransactionItem>* data)  {
         case 0: return modeldata->at(index.row()).type;
         case 1: return modeldata->at(index.row()).address;
         case 2: return modeldata->at(index.row()).datetime;
-        case 3: return QVariant(QString::number(modeldata->at(index.row()).amount, 'g', 8) % " " % Utils::getTokenName());
+        case 3: {
+                if (role == Qt::DisplayRole)
+                    return QVariant(QString::number(modeldata->at(index.row()).amount, 'g', 8) % " " % Utils::getTokenName());
+                else {
+                    return "$ " + QString::number(Settings::getInstance()->getZECPrice() * modeldata->at(index.row()).amount, 'f', 2);
+                }
+            }
         }
     }
 

src/utils.h

@@ -18,7 +18,7 @@ public:
 	static double  getTotalFee();
 
 	static const int 	 updateSpeed = 20 * 1000;	// 20 sec
-private: 
+private: 	
 	Utils() = delete;
 };