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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, 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 The Qt Company Ltd 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(this);
-
- connect(addButton, &QPushButton::clicked,
- this, &AddressBook::addContact);
- connect(submitButton, &QPushButton::clicked,
- this, &AddressBook::submitContact);
- connect(editButton, &QPushButton::clicked,
- this, &AddressBook::editContact);
- connect(removeButton, &QPushButton::clicked,
- this, &AddressBook::removeContact);
- connect(cancelButton, &QPushButton::clicked,
- this, &AddressBook::cancel);
- connect(findButton, &QPushButton::clicked,
- this, &AddressBook::findContact);
- connect(nextButton, &QPushButton::clicked,
- this, &AddressBook::next);
- connect(previousButton, &QPushButton::clicked,
- this, &AddressBook::previous);
- connect(loadButton, &QPushButton::clicked,
- this, &AddressBook::loadFromFile);
- connect(saveButton, &QPushButton::clicked,
- this, &AddressBook::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]