qt5base-lts/examples/itemviews/addressbook/addresswidget.cpp

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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,
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtWidgets>
#include "addresswidget.h"
#include "adddialog.h"
//! [0]
AddressWidget::AddressWidget(QWidget *parent)
: QTabWidget(parent)
{
table = new TableModel(this);
newAddressTab = new NewAddressTab(this);
connect(newAddressTab, SIGNAL(sendDetails(QString,QString)),
this, SLOT(addEntry(QString,QString)));
addTab(newAddressTab, "Address Book");
setupTabs();
}
//! [0]
//! [2]
void AddressWidget::addEntry()
{
AddDialog aDialog;
if (aDialog.exec()) {
QString name = aDialog.nameText->text();
QString address = aDialog.addressText->toPlainText();
addEntry(name, address);
}
}
//! [2]
//! [3]
void AddressWidget::addEntry(QString name, QString address)
{
QList< QPair<QString, QString> >list = table->getList();
QPair<QString, QString> pair(name, address);
if (!list.contains(pair)) {
table->insertRows(0, 1, QModelIndex());
QModelIndex index = table->index(0, 0, QModelIndex());
table->setData(index, name, Qt::EditRole);
index = table->index(0, 1, QModelIndex());
table->setData(index, address, Qt::EditRole);
removeTab(indexOf(newAddressTab));
} else {
QMessageBox::information(this, tr("Duplicate Name"),
tr("The name \"%1\" already exists.").arg(name));
}
}
//! [3]
//! [4a]
void AddressWidget::editEntry()
{
QTableView *temp = static_cast<QTableView*>(currentWidget());
QSortFilterProxyModel *proxy = static_cast<QSortFilterProxyModel*>(temp->model());
QItemSelectionModel *selectionModel = temp->selectionModel();
QModelIndexList indexes = selectionModel->selectedRows();
QModelIndex index, i;
QString name;
QString address;
int row = -1;
foreach (index, indexes) {
row = proxy->mapToSource(index).row();
i = table->index(row, 0, QModelIndex());
QVariant varName = table->data(i, Qt::DisplayRole);
name = varName.toString();
i = table->index(row, 1, QModelIndex());
QVariant varAddr = table->data(i, Qt::DisplayRole);
address = varAddr.toString();
}
//! [4a]
//! [4b]
AddDialog aDialog;
aDialog.setWindowTitle(tr("Edit a Contact"));
aDialog.nameText->setReadOnly(true);
aDialog.nameText->setText(name);
aDialog.addressText->setText(address);
if (aDialog.exec()) {
QString newAddress = aDialog.addressText->toPlainText();
if (newAddress != address) {
i = table->index(row, 1, QModelIndex());
table->setData(i, newAddress, Qt::EditRole);
}
}
}
//! [4b]
//! [5]
void AddressWidget::removeEntry()
{
QTableView *temp = static_cast<QTableView*>(currentWidget());
QSortFilterProxyModel *proxy = static_cast<QSortFilterProxyModel*>(temp->model());
QItemSelectionModel *selectionModel = temp->selectionModel();
QModelIndexList indexes = selectionModel->selectedRows();
QModelIndex index;
foreach (index, indexes) {
int row = proxy->mapToSource(index).row();
table->removeRows(row, 1, QModelIndex());
}
if (table->rowCount(QModelIndex()) == 0) {
insertTab(0, newAddressTab, "Address Book");
}
}
//! [5]
//! [1]
void AddressWidget::setupTabs()
{
QStringList groups;
groups << "ABC" << "DEF" << "GHI" << "JKL" << "MNO" << "PQR" << "STU" << "VW" << "XYZ";
for (int i = 0; i < groups.size(); ++i) {
QString str = groups.at(i);
proxyModel = new QSortFilterProxyModel(this);
proxyModel->setSourceModel(table);
QTableView *tableView = new QTableView;
tableView->setModel(proxyModel);
tableView->setSortingEnabled(true);
tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
tableView->horizontalHeader()->setStretchLastSection(true);
tableView->verticalHeader()->hide();
tableView->setEditTriggers(QAbstractItemView::NoEditTriggers);
tableView->setSelectionMode(QAbstractItemView::SingleSelection);
QString newStr = QString("^[%1].*").arg(str);
proxyModel->setFilterRegExp(QRegExp(newStr, Qt::CaseInsensitive));
proxyModel->setFilterKeyColumn(0);
proxyModel->sort(0, Qt::AscendingOrder);
connect(tableView->selectionModel(),
SIGNAL(selectionChanged(QItemSelection,QItemSelection)),
this, SIGNAL(selectionChanged(QItemSelection)));
addTab(tableView, str);
}
}
//! [1]
//! [7]
void AddressWidget::readFromFile(QString fileName)
{
QFile file(fileName);
if (!file.open(QIODevice::ReadOnly)) {
QMessageBox::information(this, tr("Unable to open file"),
file.errorString());
return;
}
QList< QPair<QString, QString> > pairs = table->getList();
QDataStream in(&file);
in >> pairs;
if (pairs.isEmpty()) {
QMessageBox::information(this, tr("No contacts in file"),
tr("The file you are attempting to open contains no contacts."));
} else {
for (int i=0; i<pairs.size(); ++i) {
QPair<QString, QString> p = pairs.at(i);
addEntry(p.first, p.second);
}
}
}
//! [7]
//! [6]
void AddressWidget::writeToFile(QString fileName)
{
QFile file(fileName);
if (!file.open(QIODevice::WriteOnly)) {
QMessageBox::information(this, tr("Unable to open file"), file.errorString());
return;
}
QList< QPair<QString, QString> > pairs = table->getList();
QDataStream out(&file);
out << pairs;
}
//! [6]