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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtWidgets>
+#include "addressbook.h"
+
+AddressBook::AddressBook(QWidget *parent)
+ : QWidget(parent)
+{
+ QLabel *nameLabel = new QLabel(tr("Name:"));
+ nameLine = new QLineEdit;
+ nameLine->setReadOnly(true);
+
+ QLabel *addressLabel = new QLabel(tr("Address:"));
+ addressText = new QTextEdit;
+ addressText->setReadOnly(true);
+
+ addButton = new QPushButton(tr("&Add"));
+
+ editButton = new QPushButton(tr("&Edit"));
+ editButton->setEnabled(false);
+ removeButton = new QPushButton(tr("&Remove"));
+ removeButton->setEnabled(false);
+ findButton = new QPushButton(tr("&Find"));
+ findButton->setEnabled(false);
+ submitButton = new QPushButton(tr("&Submit"));
+ submitButton->hide();
+ cancelButton = new QPushButton(tr("&Cancel"));
+ cancelButton->hide();
+
+ nextButton = new QPushButton(tr("&Next"));
+ nextButton->setEnabled(false);
+ previousButton = new QPushButton(tr("&Previous"));
+ previousButton->setEnabled(false);
+
+ loadButton = new QPushButton(tr("&Load..."));
+//! [tooltip 1]
+ loadButton->setToolTip(tr("Load contacts from a file"));
+//! [tooltip 1]
+ saveButton = new QPushButton(tr("&Save..."));
+//! [tooltip 2]
+ saveButton->setToolTip(tr("Save contacts to a file"));
+//! [tooltip 2]
+ saveButton->setEnabled(false);
+
+ dialog = new FindDialog;
+
+ connect(addButton, SIGNAL(clicked()), this, SLOT(addContact()));
+ connect(submitButton, SIGNAL(clicked()), this, SLOT(submitContact()));
+ connect(editButton, SIGNAL(clicked()), this, SLOT(editContact()));
+ connect(cancelButton, SIGNAL(clicked()), this, SLOT(cancel()));
+ connect(removeButton, SIGNAL(clicked()), this, SLOT(removeContact()));
+ connect(findButton, SIGNAL(clicked()), this, SLOT(findContact()));
+ connect(nextButton, SIGNAL(clicked()), this, SLOT(next()));
+ connect(previousButton, SIGNAL(clicked()), this, SLOT(previous()));
+ connect(loadButton, SIGNAL(clicked()), this, SLOT(loadFromFile()));
+ connect(saveButton, SIGNAL(clicked()), this, SLOT(saveToFile()));
+
+ QVBoxLayout *buttonLayout1 = new QVBoxLayout;
+ buttonLayout1->addWidget(addButton);
+ buttonLayout1->addWidget(editButton);
+ buttonLayout1->addWidget(removeButton);
+ buttonLayout1->addWidget(findButton);
+ buttonLayout1->addWidget(submitButton);
+ buttonLayout1->addWidget(cancelButton);
+ buttonLayout1->addWidget(loadButton);
+ buttonLayout1->addWidget(saveButton);
+ buttonLayout1->addStretch();
+
+ QHBoxLayout *buttonLayout2 = new QHBoxLayout;
+ buttonLayout2->addWidget(previousButton);
+ buttonLayout2->addWidget(nextButton);
+
+ QGridLayout *mainLayout = new QGridLayout;
+ mainLayout->addWidget(nameLabel, 0, 0);
+ mainLayout->addWidget(nameLine, 0, 1);
+ mainLayout->addWidget(addressLabel, 1, 0, Qt::AlignTop);
+ mainLayout->addWidget(addressText, 1, 1);
+ mainLayout->addLayout(buttonLayout1, 1, 2);
+ mainLayout->addLayout(buttonLayout2, 2, 1);
+
+ setLayout(mainLayout);
+ setWindowTitle(tr("Simple Address Book"));
+}
+
+void AddressBook::addContact()
+{
+ oldName = nameLine->text();
+ oldAddress = addressText->toPlainText();
+
+ nameLine->clear();
+ addressText->clear();
+
+ updateInterface(AddingMode);
+}
+
+void AddressBook::editContact()
+{
+ oldName = nameLine->text();
+ oldAddress = addressText->toPlainText();
+
+ updateInterface(EditingMode);
+}
+
+void AddressBook::submitContact()
+{
+ QString name = nameLine->text();
+ QString address = addressText->toPlainText();
+
+ if (name.isEmpty() || address.isEmpty()) {
+ QMessageBox::information(this, tr("Empty Field"),
+ tr("Please enter a name and address."));
+ return;
+ }
+
+ if (currentMode == AddingMode) {
+
+ if (!contacts.contains(name)) {
+ contacts.insert(name, address);
+ QMessageBox::information(this, tr("Add Successful"),
+ tr("\"%1\" has been added to your address book.").arg(name));
+ } else {
+ QMessageBox::information(this, tr("Add Unsuccessful"),
+ tr("Sorry, \"%1\" is already in your address book.").arg(name));
+ }
+ } else if (currentMode == EditingMode) {
+
+ if (oldName != name) {
+ if (!contacts.contains(name)) {
+ QMessageBox::information(this, tr("Edit Successful"),
+ tr("\"%1\" has been edited in your address book.").arg(oldName));
+ contacts.remove(oldName);
+ contacts.insert(name, address);
+ } else {
+ QMessageBox::information(this, tr("Edit Unsuccessful"),
+ tr("Sorry, \"%1\" is already in your address book.").arg(name));
+ }
+ } else if (oldAddress != address) {
+ QMessageBox::information(this, tr("Edit Successful"),
+ tr("\"%1\" has been edited in your address book.").arg(name));
+ contacts[name] = address;
+ }
+ }
+
+ updateInterface(NavigationMode);
+}
+
+void AddressBook::cancel()
+{
+ nameLine->setText(oldName);
+ addressText->setText(oldAddress);
+ updateInterface(NavigationMode);
+}
+
+void AddressBook::removeContact()
+{
+ QString name = nameLine->text();
+ QString address = addressText->toPlainText();
+
+ if (contacts.contains(name)) {
+
+ int button = QMessageBox::question(this,
+ tr("Confirm Remove"),
+ tr("Are you sure you want to remove \"%1\"?").arg(name),
+ QMessageBox::Yes | QMessageBox::No);
+
+ if (button == QMessageBox::Yes) {
+
+ previous();
+ contacts.remove(name);
+
+ QMessageBox::information(this, tr("Remove Successful"),
+ tr("\"%1\" has been removed from your address book.").arg(name));
+ }
+ }
+
+ updateInterface(NavigationMode);
+}
+
+void AddressBook::next()
+{
+ QString name = nameLine->text();
+ QMap<QString, QString>::iterator i = contacts.find(name);
+
+ if (i != contacts.end())
+ i++;
+
+ if (i == contacts.end())
+ i = contacts.begin();
+
+ nameLine->setText(i.key());
+ addressText->setText(i.value());
+}
+
+void AddressBook::previous()
+{
+ QString name = nameLine->text();
+ QMap<QString, QString>::iterator i = contacts.find(name);
+
+ if (i == contacts.end()) {
+ nameLine->clear();
+ addressText->clear();
+ return;
+ }
+
+ if (i == contacts.begin())
+ i = contacts.end();
+
+ i--;
+ nameLine->setText(i.key());
+ addressText->setText(i.value());
+}
+
+void AddressBook::findContact()
+{
+ dialog->show();
+
+ if (dialog->exec() == 1) {
+ QString contactName = dialog->getFindText();
+
+ if (contacts.contains(contactName)) {
+ nameLine->setText(contactName);
+ addressText->setText(contacts.value(contactName));
+ } else {
+ QMessageBox::information(this, tr("Contact Not Found"),
+ tr("Sorry, \"%1\" is not in your address book.").arg(contactName));
+ return;
+ }
+ }
+
+ updateInterface(NavigationMode);
+}
+
+void AddressBook::updateInterface(Mode mode)
+{
+ currentMode = mode;
+
+ switch (currentMode) {
+
+ case AddingMode:
+ case EditingMode:
+
+ nameLine->setReadOnly(false);
+ nameLine->setFocus(Qt::OtherFocusReason);
+ addressText->setReadOnly(false);
+
+ addButton->setEnabled(false);
+ editButton->setEnabled(false);
+ removeButton->setEnabled(false);
+
+ nextButton->setEnabled(false);
+ previousButton->setEnabled(false);
+
+ submitButton->show();
+ cancelButton->show();
+
+ loadButton->setEnabled(false);
+ saveButton->setEnabled(false);
+ break;
+
+ case NavigationMode:
+
+ if (contacts.isEmpty()) {
+ nameLine->clear();
+ addressText->clear();
+ }
+
+ nameLine->setReadOnly(true);
+ addressText->setReadOnly(true);
+ addButton->setEnabled(true);
+
+ int number = contacts.size();
+ editButton->setEnabled(number >= 1);
+ removeButton->setEnabled(number >= 1);
+ findButton->setEnabled(number > 2);
+ nextButton->setEnabled(number > 1);
+ previousButton->setEnabled(number > 1);
+
+ submitButton->hide();
+ cancelButton->hide();
+
+ loadButton->setEnabled(true);
+ saveButton->setEnabled(number >= 1);
+ break;
+ }
+}
+
+//! [saveToFile() function part1]
+void AddressBook::saveToFile()
+{
+ QString fileName = QFileDialog::getSaveFileName(this,
+ tr("Save Address Book"), "",
+ tr("Address Book (*.abk);;All Files (*)"));
+
+//! [saveToFile() function part1]
+//! [saveToFile() function part2]
+ if (fileName.isEmpty())
+ return;
+ else {
+ QFile file(fileName);
+ if (!file.open(QIODevice::WriteOnly)) {
+ QMessageBox::information(this, tr("Unable to open file"),
+ file.errorString());
+ return;
+ }
+
+//! [saveToFile() function part2]
+//! [saveToFile() function part3]
+ QDataStream out(&file);
+ out.setVersion(QDataStream::Qt_4_5);
+ out << contacts;
+ }
+}
+//! [saveToFile() function part3]
+
+//! [loadFromFile() function part1]
+void AddressBook::loadFromFile()
+{
+ QString fileName = QFileDialog::getOpenFileName(this,
+ tr("Open Address Book"), "",
+ tr("Address Book (*.abk);;All Files (*)"));
+//! [loadFromFile() function part1]
+
+//! [loadFromFile() function part2]
+ if (fileName.isEmpty())
+ return;
+ else {
+
+ QFile file(fileName);
+
+ if (!file.open(QIODevice::ReadOnly)) {
+ QMessageBox::information(this, tr("Unable to open file"),
+ file.errorString());
+ return;
+ }
+
+ QDataStream in(&file);
+ in.setVersion(QDataStream::Qt_4_5);
+ contacts.clear(); // clear existing contacts
+ in >> contacts;
+//! [loadFromFile() function part2]
+
+//! [loadFromFile() function part3]
+ if (contacts.isEmpty()) {
+ QMessageBox::information(this, tr("No contacts in file"),
+ tr("The file you are attempting to open contains no contacts."));
+ } else {
+ QMap<QString, QString>::iterator i = contacts.begin();
+ nameLine->setText(i.key());
+ addressText->setText(i.value());
+ }
+ }
+
+ updateInterface(NavigationMode);
+}
+//! [loadFromFile() function part3]