text: // Copyright (c) 2011-2015 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include "walletview.h"
  
  #include "addressbookpage.h"
  #include "genandprintdialog.h"
  #include "askpassphrasedialog.h"
  #include "bitcoingui.h"
  #include "clientmodel.h"
  #include "guiutil.h"
  #include "masternodeconfig.h"
  #include "optionsmodel.h"
  #include "overviewpage.h"
  #include "platformstyle.h"
  #include "receivecoinsdialog.h"
  #include "sendcoinsdialog.h"
  #include "goodsdialog.h"
  #include "signverifymessagedialog.h"
  #include "transactiontablemodel.h"
  #include "transactionview.h"
  #include "walletmodel.h"
  #include "iltmodel.h"
  
  #include "ui_interface.h"
  
  #include <QAction>
  #include <QActionGroup>
  #include <QFileDialog>
  #include <QHBoxLayout>
  #include <QLabel>
  #include <QProgressDialog>
  #include <QPushButton>
  #include <QSettings>
  #include <QVBoxLayout>
  
  WalletView::WalletView(const PlatformStyle *platformStyle, QWidget *parent):
      QStackedWidget(parent),
      clientModel(0),
      walletModel(0),
      platformStyle(platformStyle)
  {
      // Create tabs
      overviewPage = new OverviewPage(platformStyle);
  
      transactionsPage = new QWidget(this);
      QVBoxLayout *vbox = new QVBoxLayout();
      QHBoxLayout *hbox_buttons = new QHBoxLayout();
      transactionView = new TransactionView(platformStyle, this);
      vbox->addWidget(transactionView);
      QPushButton *exportButton = new QPushButton(tr("&Export"), this);
      exportButton->setToolTip(tr("Export the data in the current tab to a file"));
      if (platformStyle->getImagesOnButtons()) {
          QString theme = GUIUtil::getThemeName();
          exportButton->setIcon(QIcon(":/icons/" + theme + "/export"));
      }
      hbox_buttons->addStretch();
  
      // Sum of selected transactions
      QLabel *transactionSumLabel = new QLabel(); // Label
      transactionSumLabel->setObjectName("transactionSumLabel"); // Label ID as CSS-reference
      transactionSumLabel->setText(tr("Selected amount:"));
      hbox_buttons->addWidget(transactionSumLabel);
  
      transactionSum = new QLabel(); // Amount
      transactionSum->setObjectName("transactionSum"); // Label ID as CSS-reference
      transactionSum->setMinimumSize(200, 8);
      transactionSum->setTextInteractionFlags(Qt::TextSelectableByMouse);
      hbox_buttons->addWidget(transactionSum);
  
      hbox_buttons->addWidget(exportButton);
      vbox->addLayout(hbox_buttons);
      transactionsPage->setLayout(vbox);
  
      receiveCoinsPage = new ReceiveCoinsDialog(platformStyle);
      sendCoinsPage = new SendCoinsDialog(platformStyle);
  
      usedSendingAddressesPage = new AddressBookPage(platformStyle, AddressBookPage::ForEditing, AddressBookPage::SendingTab, this);
      usedReceivingAddressesPage = new AddressBookPage(platformStyle, AddressBookPage::ForEditing, AddressBookPage::ReceivingTab, this);
  
      goodsPage = new GoodsDialog();
  
      addWidget(overviewPage);
      addWidget(transactionsPage);
      addWidget(receiveCoinsPage);
      addWidget(sendCoinsPage);
      addWidget(goodsPage);
  
      QSettings settings;
      if (settings.value("fShowMasternodesTab").toBool()) {
          masternodeListPage = new MasternodeList(platformStyle);
          addWidget(masternodeListPage);
      }
  
      // Clicking on a transaction on the overview pre-selects the transaction on the transaction history page
      connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), transactionView, SLOT(focusTransaction(QModelIndex)));
  
      // Double-clicking on a transaction on the transaction history page shows details
      connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
  
      // Update wallet with sum of selected transactions
      connect(transactionView, SIGNAL(trxAmount(QString)), this, SLOT(trxAmount(QString)));
  
      // Clicking on "Export" allows to export the transaction list
      connect(exportButton, SIGNAL(clicked()), transactionView, SLOT(exportClicked()));
  
      // Pass through messages from sendCoinsPage
      connect(sendCoinsPage, SIGNAL(message(QString,QString,unsigned int)), this, SIGNAL(message(QString,QString,unsigned int)));
  
      // Pass through messages from transactionView
      connect(transactionView, SIGNAL(message(QString,QString,unsigned int)), this, SIGNAL(message(QString,QString,unsigned int)));
  }
  
  WalletView::~WalletView()
  {
  }
  
  void WalletView::setBitcoinGUI(BitcoinGUI *gui)
  {
      if (gui)
      {
          // Clicking on a transaction on the overview page simply sends you to transaction history page
          connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), gui, SLOT(gotoHistoryPage()));
  
          // Receive and report messages
          connect(this, SIGNAL(message(QString,QString,unsigned int)), gui, SLOT(message(QString,QString,unsigned int)));
  
          // Pass through encryption status changed signals
          connect(this, SIGNAL(encryptionStatusChanged(int)), gui, SLOT(setEncryptionStatus(int)));
  
          // Pass through transaction notifications
          connect(this, SIGNAL(incomingTransaction(QString,int,CAmount,QString,QString,QString)), gui, SLOT(incomingTransaction(QString,int,CAmount,QString,QString,QString)));
  
          // Follow new URI
          connect(this, SIGNAL(receivedURI(QString)), gui, SIGNAL(receivedURI(QString)));
      }
  }
  
  void WalletView::setClientModel(ClientModel *clientModel)
  {
      this->clientModel = clientModel;
  
      overviewPage->setClientModel(clientModel);
      sendCoinsPage->setClientModel(clientModel);
      QSettings settings;
      if (settings.value("fShowMasternodesTab").toBool()) {
          masternodeListPage->setClientModel(clientModel);
      }
  }
  
  void WalletView::setSibModel(SibModel *iltModel)
  {
      this->iltModel = iltModel;
  
      goodsPage->setSibModel(iltModel);
  }
  
  void WalletView::setWalletModel(WalletModel *walletModel)
  {
      this->walletModel = walletModel;
  
      // Put transaction list in tabs
      transactionView->setModel(walletModel);
      overviewPage->setWalletModel(walletModel);
      QSettings settings;
      if (settings.value("fShowMasternodesTab").toBool()) {
          masternodeListPage->setWalletModel(walletModel);
      }
      receiveCoinsPage->setModel(walletModel);
      sendCoinsPage->setModel(walletModel);
      usedReceivingAddressesPage->setModel(walletModel->getAddressTableModel());
      usedSendingAddressesPage->setModel(walletModel->getAddressTableModel());
      goodsPage->setModel(walletModel);
  
      if (walletModel)
      {
          // Receive and pass through messages from wallet model
          connect(walletModel, SIGNAL(message(QString,QString,unsigned int)), this, SIGNAL(message(QString,QString,unsigned int)));
  
          // Handle changes in encryption status
          connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SIGNAL(encryptionStatusChanged(int)));
          updateEncryptionStatus();
  
          // Balloon pop-up for new transaction
          connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
                  this, SLOT(processNewTransaction(QModelIndex,int,int)));
  
          // Ask for passphrase if needed
          connect(walletModel, SIGNAL(requireUnlock(bool)), this, SLOT(unlockWallet(bool)));
  
          // Show progress dialog
          connect(walletModel, SIGNAL(showProgress(QString,int)), this, SLOT(showProgress(QString,int)));
      }
  }
  
  void WalletView::processNewTransaction(const QModelIndex& parent, int start, int /*end*/)
  {
      // Prevent balloon-spam when initial block download is in progress
      if (!walletModel || !clientModel || clientModel->inInitialBlockDownload())
          return;
  
      TransactionTableModel *ttm = walletModel->getTransactionTableModel();
      if (!ttm || ttm->processingQueuedTransactions())
          return;
  
      QString date = ttm->index(start, TransactionTableModel::Date, parent).data().toString();
      qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent).data(Qt::EditRole).toULongLong();
      QString type = ttm->index(start, TransactionTableModel::Type, parent).data().toString();
      QModelIndex index = ttm->index(start, 0, parent);
      QString address = ttm->data(index, TransactionTableModel::AddressRole).toString();
      QString label = ttm->data(index, TransactionTableModel::LabelRole).toString();
  
      Q_EMIT incomingTransaction(date, walletModel->getOptionsModel()->getDisplayUnit(), amount, type, address, label);
  }
  
  void WalletView::gotoOverviewPage()
  {
      setCurrentWidget(overviewPage);
  }
  
  void WalletView::gotoHistoryPage()
  {
      setCurrentWidget(transactionsPage);
  }
  
  void WalletView::gotoMasternodePage()
  {
      QSettings settings;
      if (settings.value("fShowMasternodesTab").toBool()) {
          setCurrentWidget(masternodeListPage);
      }
  }
  
  void WalletView::gotoReceiveCoinsPage()
  {
      setCurrentWidget(receiveCoinsPage);
  }
  
  void WalletView::gotoSendCoinsPage(QString addr)
  {
      setCurrentWidget(sendCoinsPage);
  
      if (!addr.isEmpty())
          sendCoinsPage->setAddress(addr);
  }
  
  void WalletView::gotoGoodsPage()
  {
      setCurrentWidget(goodsPage);
  }
  
  void WalletView::gotoSignMessageTab(QString addr)
  {
      // calls show() in showTab_SM()
      SignVerifyMessageDialog *signVerifyMessageDialog = new SignVerifyMessageDialog(platformStyle, this);
      signVerifyMessageDialog->setAttribute(Qt::WA_DeleteOnClose);
      signVerifyMessageDialog->setModel(walletModel);
      signVerifyMessageDialog->showTab_SM(true);
  
      if (!addr.isEmpty())
          signVerifyMessageDialog->setAddress_SM(addr);
  }
  
  void WalletView::gotoVerifyMessageTab(QString addr)
  {
      // calls show() in showTab_VM()
      SignVerifyMessageDialog *signVerifyMessageDialog = new SignVerifyMessageDialog(platformStyle, this);
      signVerifyMessageDialog->setAttribute(Qt::WA_DeleteOnClose);
      signVerifyMessageDialog->setModel(walletModel);
      signVerifyMessageDialog->showTab_VM(true);
  
      if (!addr.isEmpty())
          signVerifyMessageDialog->setAddress_VM(addr);
  }
  
  bool WalletView::handlePaymentRequest(const SendCoinsRecipient& recipient)
  {
      return sendCoinsPage->handlePaymentRequest(recipient);
  }
  
  void WalletView::showOutOfSyncWarning(bool fShow)
  {
      overviewPage->showOutOfSyncWarning(fShow);
  }
  
  void WalletView::updateEncryptionStatus()
  {
      Q_EMIT encryptionStatusChanged(walletModel->getEncryptionStatus());
  }
  
  void WalletView::encryptWallet(bool status)
  {
      if(!walletModel)
          return;
      AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt : AskPassphraseDialog::Decrypt, this);
      dlg.setModel(walletModel);
      dlg.exec();
  
      updateEncryptionStatus();
  }
  
  void WalletView::backupWallet()
  {
      QString filename = GUIUtil::getSaveFileName(this,
          tr("Backup Wallet"), QString(),
          tr("Wallet Data (*.dat)"), NULL);
  
      if (filename.isEmpty())
          return;
  
      if (!walletModel->backupWallet(filename)) {
          Q_EMIT message(tr("Backup Failed"), tr("There was an error trying to save the wallet data to %1.").arg(filename),
              CClientUIInterface::MSG_ERROR);
          }
      else {
          Q_EMIT message(tr("Backup Successful"), tr("The wallet data was successfully saved to %1.").arg(filename),
              CClientUIInterface::MSG_INFORMATION);
      }
  }
  
  void WalletView::changePassphrase()
  {
      AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
      dlg.setModel(walletModel);
      dlg.exec();
  }
  
  void WalletView::unlockWallet(bool fForMixingOnly)
  {
      if(!walletModel)
          return;
      // Unlock wallet when requested by wallet model
  
      if (walletModel->getEncryptionStatus() == WalletModel::Locked || walletModel->getEncryptionStatus() == WalletModel::UnlockedForMixingOnly)
      {
          AskPassphraseDialog dlg(fForMixingOnly ? AskPassphraseDialog::UnlockMixing : AskPassphraseDialog::Unlock, this);
          dlg.setModel(walletModel);
          dlg.exec();
      }
  }
  
  void WalletView::lockWallet()
  {
      if(!walletModel)
          return;
  
      walletModel->setWalletLocked(true);
  }
  
  void WalletView::usedSendingAddresses()
  {
      if(!walletModel)
          return;
  
      usedSendingAddressesPage->show();
      usedSendingAddressesPage->raise();
      usedSendingAddressesPage->activateWindow();
  }
  
  void WalletView::usedReceivingAddresses()
  {
      if(!walletModel)
          return;
  
      usedReceivingAddressesPage->show();
      usedReceivingAddressesPage->raise();
      usedReceivingAddressesPage->activateWindow();
  }
  
  void WalletView::genAndPrintAddresses()
  {
      if(!walletModel)
          return;
      
      GenAndPrintDialog dlg(GenAndPrintDialog::Export, this);
      dlg.setModel(walletModel);
      if (dlg.exec())
      {
          QMessageBox::warning(this, tr(""),
          			tr("Before sending ilixomtests to address please be sure\n"
          			"that paper wallet has been printed successfully!"));
  
          QString uri = dlg.getURI();
          Q_EMIT receivedURI(uri);
      }
  }
  
  void WalletView::loadFromPaper()
  {
      if(!walletModel)
          return;
      
      GenAndPrintDialog dlg(GenAndPrintDialog::Import, this);
      dlg.setModel(walletModel);
      dlg.exec();
  }
  
  void WalletView::showProgress(const QString &title, int nProgress)
  {
      if (nProgress == 0)
      {
          progressDialog = new QProgressDialog(title, "", 0, 100);
          progressDialog->setWindowModality(Qt::ApplicationModal);
          progressDialog->setMinimumDuration(0);
          progressDialog->setCancelButton(0);
          progressDialog->setAutoClose(false);
          progressDialog->setValue(0);
      }
      else if (nProgress == 100)
      {
          if (progressDialog)
          {
              progressDialog->close();
              progressDialog->deleteLater();
          }
      }
      else if (progressDialog)
          progressDialog->setValue(nProgress);
  }
  
  /** Update wallet with the sum of the selected transactions */
  void WalletView::trxAmount(QString amount)
  {
      transactionSum->setText(amount);
  }
  