Add backup wallet option

src/connection.cpp

@@ -478,6 +478,7 @@ std::shared_ptr<ConnectionConfig> ConnectionLoader::autoDetectZcashConf() {
     zcashconf->host     = "127.0.0.1";
     zcashconf->connType = ConnectionType::DetectedConfExternalZcashD;
     zcashconf->usingZcashConf = true;
+    zcashconf->zcashDir = QFileInfo(confLocation).absoluteDir().absolutePath();
 
     Settings::getInstance()->setUsingZcashConf(confLocation);
 
@@ -526,7 +527,7 @@ std::shared_ptr<ConnectionConfig> ConnectionLoader::loadFromSettings() {
     if (username.isEmpty() || password.isEmpty())
         return nullptr;
 
-    auto uiConfig = new ConnectionConfig{ host, port, username, password, false, ConnectionType::UISettingsZCashD };
+    auto uiConfig = new ConnectionConfig{ host, port, username, password, false, "",  ConnectionType::UISettingsZCashD};
 
     return std::shared_ptr<ConnectionConfig>(uiConfig);
 }

src/connection.h

@@ -21,6 +21,7 @@ struct ConnectionConfig {
     QString rpcuser;
     QString rpcpassword;
     bool    usingZcashConf;
+    QString zcashDir;
 
     ConnectionType connType;
 };

src/mainwindow.cpp

@@ -48,6 +48,9 @@ MainWindow::MainWindow(QWidget *parent) :
     // Export All Private Keys
     QObject::connect(ui->actionExport_All_Private_Keys, &QAction::triggered, this, &MainWindow::exportAllKeys);
 
+    // Backup wallet.dat
+    QObject::connect(ui->actionBackup_wallet_dat, &QAction::triggered, this, &MainWindow::backupWalletDat);
+
     // z-Board.net
     QObject::connect(ui->actionz_board_net, &QAction::triggered, this, &MainWindow::postToZBoard);
 
@@ -633,6 +636,26 @@ void MainWindow::importPrivKey() {
     }
 }
 
+void MainWindow::backupWalletDat() {
+    QFile wallet(QDir(rpc->getConnection()->config->zcashDir).filePath("wallet.dat"));
+    if (!wallet.exists()) {
+        QMessageBox::critical(this, "No wallet.dat", "Couldn't find the wallet.dat on this computer."
+            "You need to backup it up from the machine zcashd is running on", QMessageBox::Ok);
+        return;
+    }
+    
+    QUrl backupName = QFileDialog::getSaveFileUrl(this, "Backup wallet.dat", 
+        "zcash-wallet-backup-" + QDateTime::currentDateTime().toString("yyyyMMdd") + ".dat",
+        "Data file (*.dat)");
+    if (backupName.isEmpty())
+        return;
+
+    if (!wallet.copy(backupName.toLocalFile())) {
+        QMessageBox::critical(this, "Couldn't backup", "Couldn't backup the wallet.dat file."
+            "You need to backup it up manually.", QMessageBox::Ok);
+    }
+}
+
 void MainWindow::exportAllKeys() {
     QDialog d(this);
     Ui_PrivKey pui;

src/mainwindow.h

@@ -89,6 +89,8 @@ private:
     void postToZBoard();
     void importPrivKey();
     void exportAllKeys();
+    void backupWalletDat();
+
     void doImport(QList<QString>* keys);
 
     void restoreSavedStates();

src/mainwindow.ui

@@ -316,8 +316,8 @@
                <rect>
                 <x>0</x>
                 <y>0</y>
-                <width>920</width>
-                <height>334</height>
+                <width>928</width>
+                <height>380</height>
                </rect>
               </property>
               <layout class="QVBoxLayout" name="sendToLayout">
@@ -849,7 +849,7 @@
      <x>0</x>
      <y>0</y>
      <width>968</width>
-     <height>22</height>
+     <height>19</height>
     </rect>
    </property>
    <widget class="QMenu" name="menuFile">
@@ -858,6 +858,7 @@
     </property>
     <addaction name="actionImport_Private_Key"/>
     <addaction name="actionExport_All_Private_Keys"/>
+    <addaction name="actionBackup_wallet_dat"/>
     <addaction name="separator"/>
     <addaction name="actionExit"/>
    </widget>
@@ -932,7 +933,7 @@
   </action>
   <action name="actionExport_All_Private_Keys">
    <property name="text">
-    <string>Export all private keys</string>
+    <string>&amp;Export all private keys</string>
    </property>
   </action>
   <action name="actionz_board_net">
@@ -951,6 +952,11 @@
     <string>Ctrl+B</string>
    </property>
   </action>
+  <action name="actionBackup_wallet_dat">
+   <property name="text">
+    <string>&amp;Backup wallet.dat</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>

src/settings.h

@@ -16,8 +16,8 @@ struct Tx;
 class Settings
 {
 public:
-    static Settings* init();
-    static Settings* getInstance();
+    static  Settings* init();
+    static  Settings* getInstance();
 
     Config  getSettings();
     void    saveSettings(const QString& host, const QString& port, const QString& username, const QString& password);
@@ -78,7 +78,7 @@ public:
 
     static const int     updateSpeed         = 20 * 1000;        // 20 sec
     static const int     quickUpdateSpeed    = 5  * 1000;        // 5 sec
-    static const int     priceRefreshSpeed   = 60 * 60 * 1000;    // 1 hr
+    static const int     priceRefreshSpeed   = 60 * 60 * 1000;   // 1 hr
 
 private:
     // This class can only be accessed through Settings::getInstance()