qt5base-lts/examples/widgets/tutorials/addressbook-fr/part4/addressbook.cpp
Frederik Gladhorn f67d23d4fc Move tutorials to widgets.
All of these are very QWidget centric.
They cannot properly refer to the
sources without being part of the widget module.

This fixes around 300 qdoc errors.

Change-Id: I5a7c2dbc10f7913f7b088d6a0ac81323b3c287ac
Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>
2012-09-09 01:18:37 +02:00

289 lines
9.3 KiB
C++

/****************************************************************************
**
** 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:
**
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** 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
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** distribution.
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****************************************************************************/
#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"));
//! [edit and remove buttons]
editButton = new QPushButton(tr("&Edit"));
editButton->setEnabled(false);
removeButton = new QPushButton(tr("&Remove"));
removeButton->setEnabled(false);
//! [edit and remove buttons]
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);
connect(addButton, SIGNAL(clicked()), this, SLOT(addContact()));
connect(submitButton, SIGNAL(clicked()), this, SLOT(submitContact()));
//! [connecting edit and remove]
connect(editButton, SIGNAL(clicked()), this, SLOT(editContact()));
connect(removeButton, SIGNAL(clicked()), this, SLOT(removeContact()));
//! [connecting edit and remove]
connect(cancelButton, SIGNAL(clicked()), this, SLOT(cancel()));
connect(nextButton, SIGNAL(clicked()), this, SLOT(next()));
connect(previousButton, SIGNAL(clicked()), this, SLOT(previous()));
QVBoxLayout *buttonLayout1 = new QVBoxLayout;
buttonLayout1->addWidget(addButton);
//! [adding edit and remove to the layout]
buttonLayout1->addWidget(editButton);
buttonLayout1->addWidget(removeButton);
//! [adding edit and remove to the layout]
buttonLayout1->addWidget(submitButton);
buttonLayout1->addWidget(cancelButton);
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, 3, 1);
setLayout(mainLayout);
setWindowTitle(tr("Simple Address Book"));
}
void AddressBook::addContact()
{
oldName = nameLine->text();
oldAddress = addressText->toPlainText();
nameLine->clear();
addressText->clear();
updateInterface(AddingMode);
}
//! [editContact() function]
void AddressBook::editContact()
{
oldName = nameLine->text();
oldAddress = addressText->toPlainText();
updateInterface(EditingMode);
}
//! [editContact() function]
//! [submitContact() function beginning]
void AddressBook::submitContact()
{
//! [submitContact() function beginning]
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;
}
//! [submitContact() function part1]
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));
}
//! [submitContact() function part1]
//! [submitContact() function part2]
} 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);
}
//! [submitContact() function part2]
void AddressBook::cancel()
{
nameLine->setText(oldName);
addressText->setText(oldAddress);
updateInterface(NavigationMode);
}
//! [removeContact() function]
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);
}
//! [removeContact() function]
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());
}
//! [update interface() part 1]
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();
break;
//! [update interface() part 1]
//! [update interface() part 2]
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);
nextButton->setEnabled(number > 1);
previousButton->setEnabled(number >1 );
submitButton->hide();
cancelButton->hide();
break;
}
}
//! [update interface() part 2]