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# addressview.cpp Example File
activeqt/qutlook/addressview.cpp

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     ** General Public License version 3.0 as published by the Free Software
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     #include "addressview.h"
     #include "msoutl.h"
     #include <QtGui>

     class AddressBookModel : public QAbstractListModel
     {
     public:
         AddressBookModel(AddressView *parent);
         ~AddressBookModel();

         int rowCount(const QModelIndex &parent = QModelIndex()) const;
         int columnCount(const QModelIndex &parent) const;
         QVariant headerData(int section, Qt::Orientation orientation, int role) const;
         QVariant data(const QModelIndex &index, int role) const;

         void changeItem(const QModelIndex &index, const QString &firstName, const QString &lastName, const QString &address, const QString &email);
         void addItem(const QString &firstName, const QString &lastName, const QString &address, const QString &email);
         void update();

     private:
         Outlook::Application outlook;
         Outlook::Items * contactItems;

         mutable QHash<QModelIndex, QStringList> cache;
     };

     AddressBookModel::AddressBookModel(AddressView *parent)
     : QAbstractListModel(parent)
     {
         if (!outlook.isNull()) {
             Outlook::NameSpace session(outlook.Session());
             session.Logon();
             Outlook::MAPIFolder *folder = session.GetDefaultFolder(Outlook::olFolderContacts);
             contactItems = new Outlook::Items(folder->Items());
             connect(contactItems, SIGNAL(ItemAdd(IDispatch*)), parent, SLOT(updateOutlook()));
             connect(contactItems, SIGNAL(ItemChange(IDispatch*)), parent, SLOT(updateOutlook()));
             connect(contactItems, SIGNAL(ItemRemove()), parent, SLOT(updateOutlook()));

             delete folder;
         }
     }

     AddressBookModel::~AddressBookModel()
     {
         delete contactItems;

         if (!outlook.isNull())
             Outlook::NameSpace(outlook.Session()).Logoff();
     }

     int AddressBookModel::rowCount(const QModelIndex &) const
     {
         return contactItems ? contactItems->Count() : 0;
     }

     int AddressBookModel::columnCount(const QModelIndex &parent) const
     {
         return 4;
     }

     QVariant AddressBookModel::headerData(int section, Qt::Orientation orientation, int role) const
     {
         if (role != Qt::DisplayRole)
             return QVariant();

         switch (section) {
         case 0:
             return tr("First Name");
         case 1:
             return tr("Last Name");
         case 2:
             return tr("Address");
         case 3:
             return tr("Email");
         default:
             break;
         }

         return QVariant();
     }

     QVariant AddressBookModel::data(const QModelIndex &index, int role) const
     {
         if (!index.isValid() || role != Qt::DisplayRole)
             return QVariant();

         QStringList data;
         if (cache.contains(index)) {
             data = cache.value(index);
         } else {
             Outlook::ContactItem contact(contactItems->Item(index.row() + 1));
             data << contact.FirstName() << contact.LastName() << contact.HomeAddress() << contact.Email1Address();
             cache.insert(index, data);
         }

         if (index.column() < data.count())
             return data.at(index.column());

         return QVariant();
     }

     void AddressBookModel::changeItem(const QModelIndex &index, const QString &firstName, const QString &lastName, const QString &address, const QString &email)
     {
         Outlook::ContactItem item(contactItems->Item(index.row() + 1));

         item.SetFirstName(firstName);
         item.SetLastName(lastName);
         item.SetHomeAddress(address);
         item.SetEmail1Address(email);

         item.Save();

         cache.take(index);
     }

     void AddressBookModel::addItem(const QString &firstName, const QString &lastName, const QString &address, const QString &email)
     {
         Outlook::ContactItem item(outlook.CreateItem(Outlook::olContactItem));
         if (!item.isNull()) {
             item.SetFirstName(firstName);
             item.SetLastName(lastName);
             item.SetHomeAddress(address);
             item.SetEmail1Address(email);

             item.Save();
         }
     }

     void AddressBookModel::update()
     {
         cache.clear();

         emit reset();
     }

     AddressView::AddressView(QWidget *parent)
     : QWidget(parent)
     {
         QGridLayout *mainGrid = new QGridLayout(this);

         QLabel *liFirstName = new QLabel("First &Name", this);
         liFirstName->resize(liFirstName->sizeHint());
         mainGrid->addWidget(liFirstName, 0, 0);

         QLabel *liLastName = new QLabel("&Last Name", this);
         liLastName->resize(liLastName->sizeHint());
         mainGrid->addWidget(liLastName, 0, 1);

         QLabel *liAddress = new QLabel("Add&ress", this);
         liAddress->resize(liAddress->sizeHint());
         mainGrid->addWidget(liAddress, 0, 2);

         QLabel *liEMail = new QLabel("&E-Mail", this);
         liEMail->resize(liEMail->sizeHint());
         mainGrid->addWidget(liEMail, 0, 3);

         add = new QPushButton("A&dd", this);
         add->resize(add->sizeHint());
         mainGrid->addWidget(add, 0, 4);
         connect(add, SIGNAL(clicked()), this, SLOT(addEntry()));

         iFirstName = new QLineEdit(this);
         iFirstName->resize(iFirstName->sizeHint());
         mainGrid->addWidget(iFirstName, 1, 0);
         liFirstName->setBuddy(iFirstName);

         iLastName = new QLineEdit(this);
         iLastName->resize(iLastName->sizeHint());
         mainGrid->addWidget(iLastName, 1, 1);
         liLastName->setBuddy(iLastName);

         iAddress = new QLineEdit(this);
         iAddress->resize(iAddress->sizeHint());
         mainGrid->addWidget(iAddress, 1, 2);
         liAddress->setBuddy(iAddress);

         iEMail = new QLineEdit(this);
         iEMail->resize(iEMail->sizeHint());
         mainGrid->addWidget(iEMail, 1, 3);
         liEMail->setBuddy(iEMail);

         change = new QPushButton("&Change", this);
         change->resize(change->sizeHint());
         mainGrid->addWidget(change, 1, 4);
         connect(change, SIGNAL(clicked()), this, SLOT(changeEntry()));

         treeView = new QTreeView(this);
         treeView->setSelectionMode(QTreeView::SingleSelection);
         treeView->setRootIsDecorated(false);

         model = new AddressBookModel(this);
         treeView->setModel(model);

         connect(treeView->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)), this, SLOT(itemSelected(QModelIndex)));

         mainGrid->addWidget(treeView, 2, 0, 1, 5);
     }

     void AddressView::updateOutlook()
     {
         model->update();
     }

     void AddressView::addEntry()
     {
         if (!iFirstName->text().isEmpty() || !iLastName->text().isEmpty() ||
              !iAddress->text().isEmpty() || !iEMail->text().isEmpty()) {
             model->addItem(iFirstName->text(), iFirstName->text(), iAddress->text(), iEMail->text());
         }

         iFirstName->setText("");
         iLastName->setText("");
         iAddress->setText("");
         iEMail->setText("");
     }

     void AddressView::changeEntry()
     {
         QModelIndex current = treeView->currentIndex();

         if (current.isValid())
             model->changeItem(current, iFirstName->text(), iLastName->text(), iAddress->text(), iEMail->text());
     }

     void AddressView::itemSelected(const QModelIndex &index)
     {
         if (!index.isValid())
             return;

         QAbstractItemModel *model = treeView->model();
         iFirstName->setText(model->data(model->index(index.row(), 0)).toString());
         iLastName->setText(model->data(model->index(index.row(), 1)).toString());
         iAddress->setText(model->data(model->index(index.row(), 2)).toString());
         iEMail->setText(model->data(model->index(index.row(), 3)).toString());
     }