Qt 1.6 | Enginio Manual | Enginio C++ Examples - Cloud Address Book | mainwindow.cpp Example File

Qt 1.6.3 Reference Documentation

# mainwindow.cpp Example File

cloudaddressbook/mainwindow.cpp

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      #include <QtCore/qbytearray.h>
      #include <QtCore/qpair.h>

      #include <QtCore/qjsondocument.h>
      #include <QtCore/qjsonobject.h>
      #include <QtCore/qsortfilterproxymodel.h>

      #include <Enginio/enginioclient.h>
      #include <Enginio/enginioreply.h>

      #include <QtGui/qicon.h>
      #include <QtWidgets/qpushbutton.h>

      #include "addressbookmodel.h"

      // To get the backend right, we use a helper class in the example.
      // Usually one would just insert the backend information below.
      #include "backendhelper.h"

      #include "mainwindow.h"

      MainWindow::MainWindow(QWidget *parent)
          : QMainWindow(parent)
      {
          setupUi(this);
          QByteArray EnginioBackendId = backendId("cloudaddressbook");

          client = new EnginioClient(this);
          client->setBackendId(EnginioBackendId);

          // this line is a debugging conviniance, passing all errors to qDebug()
          QObject::connect(client, &EnginioClient::error, this, &MainWindow::error);

          model = new AddressBookModel(this);
          model->setClient(client);

          QJsonObject query;
          query["objectType"] = QString::fromUtf8("objects.addressbook");
          model->setQuery(query);

          tableView->horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);

          sortFilterProxyModel = new QSortFilterProxyModel(this);
          sortFilterProxyModel->setSourceModel(model);
          tableView->setSortingEnabled(true);
          tableView->setModel(sortFilterProxyModel);

          // create the full text search based on searchEdit text value
          QObject::connect(searchEdit, &QLineEdit::returnPressed, this, &MainWindow::onSearchEdit);

          // clear the status bar when the search is finished
          QObject::connect(model, &AddressBookModel::searchFinished, this, &MainWindow::onSearchFinished);

          // append an empty row
          QObject::connect(add, &QPushButton::clicked, this, &MainWindow::onAddRow);

          // enable remove button when a row is selected
          QObject::connect(tableView->selectionModel(), &QItemSelectionModel::selectionChanged, this, &MainWindow::onSelectionChanged);

          // remove selected rows
          QObject::connect(remove, &QPushButton::clicked, this, &MainWindow::onRemoveRow);
      }

      void MainWindow::onSearchEdit()
      {
          model->newSearch(searchEdit->text());
          statusbar->showMessage(QStringLiteral("Searching for: ") + searchEdit->text());
          searchEdit->clear();
      }

      void MainWindow::onSearchFinished()
      {
          statusbar->showMessage(QStringLiteral("Search finished"), 1500);
      }

      void MainWindow::onAddRow()
      {
          QJsonObject item;
          item.insert("objectType", QString::fromUtf8("objects.addressbook"));
          EnginioReply *reply = model->append(item);
          QObject::connect(reply, &EnginioReply::finished, reply, &EnginioReply::deleteLater);
      }

      void MainWindow::onSelectionChanged()
      {
          remove->setEnabled(tableView->selectionModel()->selectedRows().count());
      }

      void MainWindow::onRemoveRow()
      {
          foreach (const QModelIndex &index, tableView->selectionModel()->selectedRows()) {
              QModelIndex sourceIndex = sortFilterProxyModel->mapToSource(index);
              EnginioReply *reply = model->remove(sourceIndex.row());
              QObject::connect(reply, &EnginioReply::finished, reply, &EnginioReply::deleteLater);
          }
      }

      void MainWindow::error(EnginioReply *error)
      {
          qWarning() << Q_FUNC_INFO << error;
      }