Logo Search packages:      
Sourcecode: qt4-x11 version File versions

addressbook.cpp

/****************************************************************************
**
** Copyright (C) 2007-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file.  Alternatively you may (at
** your option) use any later version of the GNU General Public
** License if such license has been publicly approved by Trolltech ASA
** (or its successors, if any) and the KDE Free Qt Foundation. In
** addition, as a special exception, Trolltech gives you certain
** additional rights. These rights are described in the Trolltech GPL
** Exception version 1.2, which can be found at
** http://www.trolltech.com/products/qt/gplexception/ and in the file
** GPL_EXCEPTION.txt in this package.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/. If
** you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** In addition, as a special exception, Trolltech, as the sole
** copyright holder for Qt Designer, grants users of the Qt/Eclipse
** Integration plug-in the right for the Qt/Eclipse Integration to
** link to functionality provided by Qt Designer and its related
** libraries.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly
** granted herein.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#include <QtGui>
#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"));
    addButton->show();
    submitButton = new QPushButton(tr("&Submit"));
    submitButton->hide();
    cancelButton = new QPushButton(tr("&Cancel"));
    cancelButton->hide();
//! [navigation pushbuttons]
    nextButton = new QPushButton(tr("&Next"));
    nextButton->setEnabled(false);
    previousButton = new QPushButton(tr("&Previous"));
    previousButton->setEnabled(false);
//! [navigation pushbuttons]

    connect(addButton, SIGNAL(clicked()), this, SLOT(addContact()));
    connect(submitButton, SIGNAL(clicked()), this, SLOT(submitContact()));
    connect(cancelButton, SIGNAL(clicked()), this, SLOT(cancel()));
//! [connecting navigation signals]    
    connect(nextButton, SIGNAL(clicked()), this, SLOT(next()));
    connect(previousButton, SIGNAL(clicked()), this, SLOT(previous()));
//! [connecting navigation signals]

    QVBoxLayout *buttonLayout1 = new QVBoxLayout;
    buttonLayout1->addWidget(addButton, Qt::AlignTop);
    buttonLayout1->addWidget(submitButton);
    buttonLayout1->addWidget(cancelButton);
    buttonLayout1->addStretch();
//! [navigation layout]
    QHBoxLayout *buttonLayout2 = new QHBoxLayout;
    buttonLayout2->addWidget(previousButton);
    buttonLayout2->addWidget(nextButton);
//! [ navigation layout]
    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);
//! [adding navigation layout]
    mainLayout->addLayout(buttonLayout2, 3, 1);
//! [adding navigation layout]
    setLayout(mainLayout);
    setWindowTitle(tr("Simple Address Book"));
}

void AddressBook::addContact()
{
    oldName = nameLine->text();
    oldAddress = addressText->toPlainText();

    nameLine->clear();
    addressText->clear();

    nameLine->setReadOnly(false);
    nameLine->setFocus(Qt::OtherFocusReason);
    addressText->setReadOnly(false);
    
    addButton->setEnabled(false);
//! [disabling navigation]
    nextButton->setEnabled(false);
    previousButton->setEnabled(false);
//! [disabling navigation]
    submitButton->show();
    cancelButton->show();
}

void AddressBook::submitContact()
{
    QString name = nameLine->text();
    QString address = addressText->toPlainText();
    
    if (name == "" || address == "") {
        QMessageBox::information(this, tr("Empty Field"),
            tr("Please enter a name and adderss."));
        return;
    }

    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));
        return;
    }

    if (contacts.isEmpty()) {
        nameLine->clear();
        addressText->clear();
    }

    nameLine->setReadOnly(true);
    addressText->setReadOnly(true);
    addButton->setEnabled(true);

//! [enabling navigation]
    int number = contacts.size();
    nextButton->setEnabled(number > 1);
    previousButton->setEnabled(number > 1);
//! [enabling navigation]
    submitButton->hide();
    cancelButton->hide();
}

void AddressBook::cancel()
{
    nameLine->setText(oldName);
    addressText->setText(oldAddress);
   
    if (contacts.isEmpty()) {
        nameLine->clear();
        addressText->clear();
    }
    
    nameLine->setReadOnly(true);
    addressText->setReadOnly(true);
    addButton->setEnabled(true);
    
    int number = contacts.size();
    nextButton->setEnabled(number > 1);
    previousButton->setEnabled(number > 1);
    
    submitButton->hide();
    cancelButton->hide();
}

//! [next() function]
00185 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());
}
//! [next() function]
//! [previous() function]
00201 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());
}
//! [previous() function]

Generated by  Doxygen 1.6.0   Back to index