05fc3aef53
Replace the current license disclaimer in files by a SPDX-License-Identifier. Files that have to be modified by hand are modified. License files are organized under LICENSES directory. Task-number: QTBUG-67283 Change-Id: Id880c92784c40f3bbde861c0d93f58151c18b9f1 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io> Reviewed-by: Jörg Bornemann <joerg.bornemann@qt.io>
183 lines
5.1 KiB
C++
183 lines
5.1 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include <QtWidgets>
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#include "addressbook.h"
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AddressBook::AddressBook(QWidget *parent)
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: QWidget(parent)
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{
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QLabel *nameLabel = new QLabel(tr("Name:"));
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nameLine = new QLineEdit;
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nameLine->setReadOnly(true);
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QLabel *addressLabel = new QLabel(tr("Address:"));
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addressText = new QTextEdit;
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addressText->setReadOnly(true);
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addButton = new QPushButton(tr("&Add"));
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addButton->show();
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submitButton = new QPushButton(tr("&Submit"));
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submitButton->hide();
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cancelButton = new QPushButton(tr("&Cancel"));
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cancelButton->hide();
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//! [navigation pushbuttons]
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nextButton = new QPushButton(tr("&Next"));
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nextButton->setEnabled(false);
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previousButton = new QPushButton(tr("&Previous"));
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previousButton->setEnabled(false);
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//! [navigation pushbuttons]
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connect(addButton, &QPushButton::clicked,
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this, &AddressBook::addContact);
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connect(submitButton, &QPushButton::clicked,
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this, &AddressBook::submitContact);
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connect(cancelButton, &QPushButton::clicked,
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this, &AddressBook::cancel);
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//! [connecting navigation signals]
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connect(nextButton, &QPushButton::clicked,
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this, &AddressBook::next);
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connect(previousButton, &QPushButton::clicked,
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this, &AddressBook::previous);
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//! [connecting navigation signals]
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QVBoxLayout *buttonLayout1 = new QVBoxLayout;
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buttonLayout1->addWidget(addButton, Qt::AlignTop);
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buttonLayout1->addWidget(submitButton);
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buttonLayout1->addWidget(cancelButton);
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buttonLayout1->addStretch();
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//! [navigation layout]
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QHBoxLayout *buttonLayout2 = new QHBoxLayout;
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buttonLayout2->addWidget(previousButton);
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buttonLayout2->addWidget(nextButton);
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//! [ navigation layout]
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QGridLayout *mainLayout = new QGridLayout;
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mainLayout->addWidget(nameLabel, 0, 0);
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mainLayout->addWidget(nameLine, 0, 1);
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mainLayout->addWidget(addressLabel, 1, 0, Qt::AlignTop);
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mainLayout->addWidget(addressText, 1, 1);
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mainLayout->addLayout(buttonLayout1, 1, 2);
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//! [adding navigation layout]
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mainLayout->addLayout(buttonLayout2, 2, 1);
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//! [adding navigation layout]
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setLayout(mainLayout);
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setWindowTitle(tr("Simple Address Book"));
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}
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void AddressBook::addContact()
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{
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oldName = nameLine->text();
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oldAddress = addressText->toPlainText();
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nameLine->clear();
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addressText->clear();
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nameLine->setReadOnly(false);
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nameLine->setFocus(Qt::OtherFocusReason);
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addressText->setReadOnly(false);
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addButton->setEnabled(false);
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//! [disabling navigation]
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nextButton->setEnabled(false);
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previousButton->setEnabled(false);
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//! [disabling navigation]
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submitButton->show();
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cancelButton->show();
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}
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void AddressBook::submitContact()
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{
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QString name = nameLine->text();
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QString address = addressText->toPlainText();
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if (name.isEmpty() || address.isEmpty()) {
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QMessageBox::information(this, tr("Empty Field"),
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tr("Please enter a name and address."));
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return;
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}
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if (!contacts.contains(name)) {
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contacts.insert(name, address);
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QMessageBox::information(this, tr("Add Successful"),
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tr("\"%1\" has been added to your address book.").arg(name));
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} else {
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QMessageBox::information(this, tr("Add Unsuccessful"),
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tr("Sorry, \"%1\" is already in your address book.").arg(name));
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}
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if (contacts.isEmpty()) {
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nameLine->clear();
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addressText->clear();
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}
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nameLine->setReadOnly(true);
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addressText->setReadOnly(true);
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addButton->setEnabled(true);
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//! [enabling navigation]
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int number = contacts.size();
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nextButton->setEnabled(number > 1);
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previousButton->setEnabled(number > 1);
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//! [enabling navigation]
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submitButton->hide();
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cancelButton->hide();
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}
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void AddressBook::cancel()
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{
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nameLine->setText(oldName);
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addressText->setText(oldAddress);
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if (contacts.isEmpty()) {
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nameLine->clear();
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addressText->clear();
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}
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nameLine->setReadOnly(true);
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addressText->setReadOnly(true);
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addButton->setEnabled(true);
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int number = contacts.size();
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nextButton->setEnabled(number > 1);
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previousButton->setEnabled(number > 1);
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submitButton->hide();
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cancelButton->hide();
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}
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//! [next() function]
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void AddressBook::next()
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{
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QString name = nameLine->text();
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QMap<QString, QString>::iterator i = contacts.find(name);
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if (i != contacts.end())
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i++;
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if (i == contacts.end())
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i = contacts.begin();
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nameLine->setText(i.key());
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addressText->setText(i.value());
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}
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//! [next() function]
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//! [previous() function]
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void AddressBook::previous()
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{
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QString name = nameLine->text();
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QMap<QString, QString>::iterator i = contacts.find(name);
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if (i == contacts.end()){
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nameLine->clear();
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addressText->clear();
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return;
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}
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if (i == contacts.begin())
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i = contacts.end();
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i--;
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nameLine->setText(i.key());
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addressText->setText(i.value());
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}
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//! [previous() function]
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