examples/itemviews/addressbook/addresswidget.cpp
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/itemviews/addressbook/addresswidget.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,238 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#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);
+        proxyModel->setDynamicSortFilter(true);
+    
+        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(const QItemSelection &, const QItemSelection &)),
+            this, SIGNAL(selectionChanged(const 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]