Qutlook Example (ActiveQt)
该示例的项目文件如下所示：
TEMPLATE = app
TARGET = qutlook
QT += widgets axcontainer
TYPELIBS = $$system(dumpcpp -getfile {00062FFF-0000-0000-C000-000000000046})
isEmpty(TYPELIBS) {
message("Microsoft Outlook type library not found!")
REQUIRES += Outlook
} else {
HEADERS = addressview.h
SOURCES = addressview.cpp main.cpp
}
项目文件使用dumpcpp工具将MS Outlook类型库添加到项目中。如果失败，那么生成的makefile将只显示一条错误消息，否则构建步骤现在将在类型库上运行dumpcpp工具，并生成一个头文件和一个cpp文件（在这种情况下， msoutl.h和msoutl.cpp），它们为Outlook对象声明和实现了一个易于使用的API。
class AddressView : public QWidget { Q_OBJECT public: AddressView(QWidget *parent = 0); protected slots: void addEntry(); void changeEntry(); void itemSelected(const QModelIndex &index); void updateOutlook(); protected: AddressBookModel *model; QTreeView *treeView; QPushButton *add, *change; QLineEdit *iFirstName, *iLastName, *iAddress, *iEMail; };
AddressView类是用户界面的QWidget子类。QTreeView小部件将显示由模型提供的Outlook联系人文件夹的内容。
#include "addressview.h" #include "msoutl.h" #include <QtWidgets> 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类是一个QAbstractListModel子类，它直接与Outlook进行通信，使用QHash进行缓存。
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; } }
构造函数初始化Outlook。Outlook提供的用于通知内容更改的各种信号连接到updateOutlook()插槽。
AddressBookModel::~AddressBookModel() { delete contactItems; if (!outlook.isNull()) Outlook::NameSpace(outlook.Session()).Logoff(); }
析构函数从会话中注销。
int AddressBookModel::rowCount(const QModelIndex &) const { return contactItems ? contactItems->Count() : 0; } int AddressBookModel::columnCount(const QModelIndex &parent) const { return 4; }
rowCount()实现返回Outlook报告的条目数。columnCount和headerData被实现为在树视图中显示四列。
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(); }
headerData()实现返回硬编码的字符串。
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(); }
The data() implementation is the core of the model. If the requested data is in the cache the cached value is used, otherwise the data is acquired from Outlook.
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); }
The changeItem() slot is called when the user changes the current entry using the user interface. The Outlook item is accessed using the Outlook API, and is modified using the property setters. Finally, the item is saved to Outlook, and removed from the cache. Note that the model does not signal the view of the data change, as Outlook will emit a signal on its own.
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(); } }
The addItem() slot calls the CreateItem method of Outlook to create a new contact item, sets the properties of the new item to the values entered by the user and saves the item.
void AddressBookModel::update() { beginResetModel(); cache.clear(); endResetModel(); }
The update() slot clears the cache, and emits the reset() signal to notify the view about the data change requiring a redraw of the contents.
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()); }
The rest of the file implements the user interface using only Qt APIs, i.e. without communicating with Outlook directly.
#include "addressview.h" #include <QApplication> int main(int argc, char ** argv) { QApplication a(argc, argv); AddressView view; view.setWindowTitle("Qt Example - Looking at Outlook"); view.show(); return a.exec(); }
The main() entry point function finally instantiates the user interface and enters the event loop.
To build the example you must first build the QAxContainer library. Then run your make tool in examples/activeqt/qutlook and run the resulting qutlook.exe.
Files: