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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the examples of the Qt Toolkit.

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    16 ** GNU Lesser General Public License Usage

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    40 ****************************************************************************/

    41 

    42 #include <QtGui>

    43 #include "addressbook.h"

    44 

    45 AddressBook::AddressBook(QWidget *parent)

    46     : QWidget(parent)

    47 {

    48     QLabel *nameLabel = new QLabel(tr("Name:"));

    49     nameLine = new QLineEdit;

    50     nameLine->setReadOnly(true);

    51 

    52     QLabel *addressLabel = new QLabel(tr("Address:"));

    53     addressText = new QTextEdit;

    54     addressText->setReadOnly(true);

    55 

    56     addButton = new QPushButton(tr("&Add"));

    57 //! [edit and remove buttons] 

    58     editButton = new QPushButton(tr("&Edit"));

    59     editButton->setEnabled(false);

    60     removeButton = new QPushButton(tr("&Remove"));

    61     removeButton->setEnabled(false);

    62 //! [edit and remove buttons] 

    63     submitButton = new QPushButton(tr("&Submit"));

    64     submitButton->hide();

    65     cancelButton = new QPushButton(tr("&Cancel"));

    66     cancelButton->hide();

    67     

    68     nextButton = new QPushButton(tr("&Next"));

    69     nextButton->setEnabled(false);

    70     previousButton = new QPushButton(tr("&Previous"));

    71     previousButton->setEnabled(false);

    72 

    73     connect(addButton, SIGNAL(clicked()), this, SLOT(addContact()));

    74     connect(submitButton, SIGNAL(clicked()), this, SLOT(submitContact()));

    75 //! [connecting edit and remove] 

    76     connect(editButton, SIGNAL(clicked()), this, SLOT(editContact()));

    77     connect(removeButton, SIGNAL(clicked()), this, SLOT(removeContact()));

    78 //! [connecting edit and remove] 

    79     connect(cancelButton, SIGNAL(clicked()), this, SLOT(cancel()));

    80     connect(nextButton, SIGNAL(clicked()), this, SLOT(next()));

    81     connect(previousButton, SIGNAL(clicked()), this, SLOT(previous()));

    82 

    83     QVBoxLayout *buttonLayout1 = new QVBoxLayout;

    84     buttonLayout1->addWidget(addButton);

    85 //! [adding edit and remove to the layout]     

    86     buttonLayout1->addWidget(editButton);

    87     buttonLayout1->addWidget(removeButton);

    88 //! [adding edit and remove to the layout]         

    89     buttonLayout1->addWidget(submitButton);

    90     buttonLayout1->addWidget(cancelButton);

    91     buttonLayout1->addStretch();

    92 

    93     QHBoxLayout *buttonLayout2 = new QHBoxLayout;

    94     buttonLayout2->addWidget(previousButton);

    95     buttonLayout2->addWidget(nextButton);

    96 

    97     QGridLayout *mainLayout = new QGridLayout;

    98     mainLayout->addWidget(nameLabel, 0, 0);

    99     mainLayout->addWidget(nameLine, 0, 1);

   100     mainLayout->addWidget(addressLabel, 1, 0, Qt::AlignTop);

   101     mainLayout->addWidget(addressText, 1, 1);

   102     mainLayout->addLayout(buttonLayout1, 1, 2);

   103     mainLayout->addLayout(buttonLayout2, 3, 1);

   104 

   105     setLayout(mainLayout);

   106     setWindowTitle(tr("Simple Address Book"));

   107 }

   108 

   109 void AddressBook::addContact()

   110 {

   111     oldName = nameLine->text();

   112     oldAddress = addressText->toPlainText();

   113 

   114     nameLine->clear();

   115     addressText->clear();

   116 

   117     updateInterface(AddingMode);

   118 }

   119 //! [editContact() function]

   120 void AddressBook::editContact()

   121 {

   122     oldName = nameLine->text();

   123     oldAddress = addressText->toPlainText();

   124 

   125     updateInterface(EditingMode);

   126 }

   127 //! [editContact() function]

   128 //! [submitContact() function beginning]

   129 void AddressBook::submitContact()

   130 {

   131 //! [submitContact() function beginning]

   132     QString name = nameLine->text();

   133     QString address = addressText->toPlainText();

   134 

   135     if (name == "" || address == "") {

   136         QMessageBox::information(this, tr("Empty Field"),

   137             tr("Please enter a name and address."));

   138     }

   139 //! [submitContact() function part1]

   140     if (currentMode == AddingMode) {

   141         

   142         if (!contacts.contains(name)) {

   143             contacts.insert(name, address);

   144             QMessageBox::information(this, tr("Add Successful"),

   145                 tr("\"%1\" has been added to your address book.").arg(name));

   146         } else {

   147             QMessageBox::information(this, tr("Add Unsuccessful"),

   148                 tr("Sorry, \"%1\" is already in your address book.").arg(name));

   149         }

   150 //! [submitContact() function part1]

   151 //! [submitContact() function part2]

   152     } else if (currentMode == EditingMode) {

   153         

   154         if (oldName != name) {

   155             if (!contacts.contains(name)) {

   156                 QMessageBox::information(this, tr("Edit Successful"),

   157                     tr("\"%1\" has been edited in your address book.").arg(oldName));

   158                 contacts.remove(oldName);

   159                 contacts.insert(name, address);

   160             } else {

   161                 QMessageBox::information(this, tr("Edit Unsuccessful"),

   162                     tr("Sorry, \"%1\" is already in your address book.").arg(name));

   163             }

   164         } else if (oldAddress != address) {

   165             QMessageBox::information(this, tr("Edit Successful"),

   166                 tr("\"%1\" has been edited in your address book.").arg(name));

   167             contacts[name] = address;        

   168         }

   169     }

   170 

   171     updateInterface(NavigationMode);

   172 }

   173 //! [submitContact() function part2]

   174 

   175 void AddressBook::cancel()

   176 {

   177     nameLine->setText(oldName);

   178     addressText->setText(oldAddress);

   179     updateInterface(NavigationMode);

   180 }

   181 //! [removeContact() function]

   182 void AddressBook::removeContact()

   183 {

   184     QString name = nameLine->text();

   185     QString address = addressText->toPlainText();

   186 

   187     if (contacts.contains(name)) {

   188 

   189         int button = QMessageBox::question(this,

   190             tr("Confirm Remove"),

   191             tr("Are you sure you want to remove \"%1\"?").arg(name),

   192             QMessageBox::Yes | QMessageBox::No);

   193 

   194         if (button == QMessageBox::Yes) {

   195             

   196             previous();

   197             contacts.remove(name);

   198 

   199             QMessageBox::information(this, tr("Remove Successful"),

   200                 tr("\"%1\" has been removed from your address book.").arg(name));

   201         }

   202     }

   203 

   204     updateInterface(NavigationMode);

   205 }

   206 //! [removeContact() function]

   207 void AddressBook::next()

   208 {

   209     QString name = nameLine->text();

   210     QMap<QString, QString>::iterator i = contacts.find(name);

   211 

   212     if (i != contacts.end())

   213         i++;

   214 

   215     if (i == contacts.end())

   216         i = contacts.begin();

   217 

   218     nameLine->setText(i.key());

   219     addressText->setText(i.value());

   220 }

   221 

   222 void AddressBook::previous()

   223 {

   224     QString name = nameLine->text();

   225     QMap<QString, QString>::iterator i = contacts.find(name);

   226 

   227     if (i == contacts.end()) {

   228         nameLine->clear();

   229         addressText->clear();

   230         return;

   231     }

   232 

   233     if (i == contacts.begin())

   234         i = contacts.end();

   235 

   236     i--;

   237     nameLine->setText(i.key());

   238     addressText->setText(i.value());

   239 }

   240 //! [update interface() part 1]

   241 void AddressBook::updateInterface(Mode mode)

   242 {

   243     currentMode = mode;

   244 

   245     switch (currentMode) {

   246         

   247     case AddingMode:

   248     case EditingMode:

   249 

   250         nameLine->setReadOnly(false);

   251         nameLine->setFocus(Qt::OtherFocusReason);

   252         addressText->setReadOnly(false);

   253 

   254         addButton->setEnabled(false);

   255         editButton->setEnabled(false);

   256         removeButton->setEnabled(false);

   257 

   258         nextButton->setEnabled(false);

   259         previousButton->setEnabled(false);

   260 

   261         submitButton->show();

   262         cancelButton->show();

   263         break;

   264 //! [update interface() part 1]

   265 //! [update interface() part 2]

   266     case NavigationMode:

   267 

   268         if (contacts.isEmpty()) {

   269             nameLine->clear();

   270             addressText->clear();

   271         }

   272 

   273         nameLine->setReadOnly(true);

   274         addressText->setReadOnly(true);

   275         addButton->setEnabled(true);

   276 

   277         int number = contacts.size();

   278         editButton->setEnabled(number >= 1);

   279         removeButton->setEnabled(number >= 1);

   280         nextButton->setEnabled(number > 1);

   281         previousButton->setEnabled(number >1 );

   282 

   283         submitButton->hide();

   284         cancelButton->hide();

   285         break;

   286     }

   287 }

   288 //! [update interface() part 2]