Allow deleting local sent Tx history

src/mainwindow.cpp

@@ -6,6 +6,7 @@
 #include "balancestablemodel.h"
 #include "settings.h"
 #include "utils.h"
+#include "senttxstore.h"
 
 #include "precompiled.h"
 
@@ -49,6 +50,14 @@ MainWindow::MainWindow(QWidget *parent) :
         aboutDialog.exec();
     });
 
+    // Set up delete sent history action
+    QObject::connect(ui->actionDelete_Sent_History, &QAction::triggered, [=] () {
+        bool confirm = QMessageBox::information(this, "Delete Sent History?", 
+                "Shielded z-Address sent transactions are stored locally in your wallet. You may delete this saved information safely any time for your privacy.\nDo you want to delete this now?", 
+                QMessageBox::Yes, QMessageBox::No);
+        if (confirm) SentTxStore::deleteHistory();
+    });
+
     // Initialize to the balances tab
     ui->tabWidget->setCurrentIndex(0);
 

src/mainwindow.ui

@@ -720,6 +720,7 @@
      <string>File</string>
     </property>
     <addaction name="actionImport_Private_Keys"/>
+    <addaction name="actionDelete_Sent_History"/>
     <addaction name="actionSettings"/>
     <addaction name="separator"/>
     <addaction name="actionExit"/>
@@ -769,6 +770,11 @@
     <string>Check github.com for Updates</string>
    </property>
   </action>
+  <action name="actionDelete_Sent_History">
+   <property name="text">
+    <string>Delete Sent History</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <tabstops>

src/senttxstore.cpp

@@ -16,6 +16,12 @@ QString SentTxStore::writeableFile() {
     }
 }
 
+// delete the sent history. 
+void SentTxStore::deleteHistory() {
+    QFile data(writeableFile());
+    data.remove();
+}
+
 QList<TransactionItem> SentTxStore::readSentTxFile() {
     QFile data(writeableFile());
     if (!data.exists()) {

src/senttxstore.h

@@ -7,6 +7,8 @@
 
 class SentTxStore {
 public:
+    static void deleteHistory();
+
     static QList<TransactionItem> readSentTxFile();
     static void                   addToSentTx(Tx tx, QString txid);
 

src/ui_mainwindow.h

@@ -47,6 +47,7 @@ public:
     QAction *actionDonate;
     QAction *actionImport_Private_Keys;
     QAction *actionCheck_for_Updates;
+    QAction *actionDelete_Sent_History;
     QWidget *centralWidget;
     QGridLayout *gridLayout_3;
     QTabWidget *tabWidget;
@@ -159,6 +160,8 @@ public:
         actionImport_Private_Keys->setVisible(false);
         actionCheck_for_Updates = new QAction(MainWindow);
         actionCheck_for_Updates->setObjectName(QStringLiteral("actionCheck_for_Updates"));
+        actionDelete_Sent_History = new QAction(MainWindow);
+        actionDelete_Sent_History->setObjectName(QStringLiteral("actionDelete_Sent_History"));
         centralWidget = new QWidget(MainWindow);
         centralWidget->setObjectName(QStringLiteral("centralWidget"));
         gridLayout_3 = new QGridLayout(centralWidget);
@@ -666,6 +669,7 @@ public:
         menuBar->addAction(menuBalance->menuAction());
         menuBar->addAction(menuHelp->menuAction());
         menuBalance->addAction(actionImport_Private_Keys);
+        menuBalance->addAction(actionDelete_Sent_History);
         menuBalance->addAction(actionSettings);
         menuBalance->addSeparator();
         menuBalance->addAction(actionExit);
@@ -690,6 +694,7 @@ public:
         actionDonate->setText(QApplication::translate("MainWindow", "Donate", nullptr));
         actionImport_Private_Keys->setText(QApplication::translate("MainWindow", "Import Private Keys", nullptr));
         actionCheck_for_Updates->setText(QApplication::translate("MainWindow", "Check github.com for Updates", nullptr));
+        actionDelete_Sent_History->setText(QApplication::translate("MainWindow", "Delete Sent History", nullptr));
         groupBox->setTitle(QApplication::translate("MainWindow", "Summary", nullptr));
         label->setText(QApplication::translate("MainWindow", "Shielded", nullptr));
         balSheilded->setText(QString());