Long live Qt 4.5!

10 files changed, 740 insertions, 0 deletions

diff --git a/demos/books/bookdelegate.cpp b/demos/books/bookdelegate.cpp
new file mode 100644
index 0000000..1322fd6
--- /dev/null
+++ b/demos/books/bookdelegate.cpp
@@ -0,0 +1,126 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "bookdelegate.h"
+
+#include <QtGui>
+
+BookDelegate::BookDelegate(QObject *parent)
+    : QSqlRelationalDelegate(parent), star(QPixmap(":images/star.png"))
+{
+}
+
+void BookDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
+                           const QModelIndex &index) const
+{
+    if (index.column() != 5) {
+        QStyleOptionViewItemV3 opt = option;
+        opt.rect.adjust(0, 0, -1, -1); // since we draw the grid ourselves
+        QSqlRelationalDelegate::paint(painter, opt, index);
+    } else {
+        const QAbstractItemModel *model = index.model();
+        QPalette::ColorGroup cg = (option.state & QStyle::State_Enabled) ?
+            (option.state & QStyle::State_Active) ? QPalette::Normal : QPalette::Inactive : QPalette::Disabled;
+
+        if (option.state & QStyle::State_Selected)
+            painter->fillRect(option.rect, option.palette.color(cg, QPalette::Highlight));
+
+        int rating = model->data(index, Qt::DisplayRole).toInt();
+        int width = star.width();
+        int height = star.height();
+        int x = option.rect.x();
+        int y = option.rect.y() + (option.rect.height() / 2) - (height / 2);
+        for (int i = 0; i < rating; ++i) {
+            painter->drawPixmap(x, y, star);
+            x += width;
+        }
+        drawFocus(painter, option, option.rect.adjusted(0, 0, -1, -1)); // since we draw the grid ourselves
+    }
+
+    QPen pen = painter->pen();
+    painter->setPen(option.palette.color(QPalette::Mid));
+    painter->drawLine(option.rect.bottomLeft(), option.rect.bottomRight());
+    painter->drawLine(option.rect.topRight(), option.rect.bottomRight());
+    painter->setPen(pen);
+}
+
+QSize BookDelegate::sizeHint(const QStyleOptionViewItem &option,
+                                 const QModelIndex &index) const
+{
+    if (index.column() == 5)
+        return QSize(5 * star.width(), star.height()) + QSize(1, 1);
+
+    return QSqlRelationalDelegate::sizeHint(option, index) + QSize(1, 1); // since we draw the grid ourselves
+}
+
+bool BookDelegate::editorEvent(QEvent *event, QAbstractItemModel *model,
+                               const QStyleOptionViewItem &option,
+                               const QModelIndex &index)
+{
+    if (index.column() != 5)
+        return QSqlRelationalDelegate::editorEvent(event, model, option, index);
+
+    if (event->type() == QEvent::MouseButtonPress) {
+        QMouseEvent *mouseEvent = static_cast<QMouseEvent*>(event);
+        int stars = qBound(0, int(0.7 + qreal(mouseEvent->pos().x()
+            - option.rect.x()) / star.width()), 5);
+        model->setData(index, QVariant(stars));
+        return false; //so that the selection can change
+    }
+
+    return true;
+}
+
+QWidget *BookDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option,
+                                    const QModelIndex &index) const
+{
+    if (index.column() != 4)
+        return QSqlRelationalDelegate::createEditor(parent, option, index);
+
+    // for editing the year, return a spinbox with a range from -1000 to 2100.
+    QSpinBox *sb = new QSpinBox(parent);
+    sb->setFrame(false);
+    sb->setMaximum(2100);
+    sb->setMinimum(-1000);
+
+    return sb;
+}
+
diff --git a/demos/books/bookdelegate.h b/demos/books/bookdelegate.h
new file mode 100644
index 0000000..fb32335
--- /dev/null
+++ b/demos/books/bookdelegate.h
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef BOOKDELEGATE_H
+#define BOOKDELEGATE_H
+
+#include <QModelIndex>
+#include <QPixmap>
+#include <QSize>
+#include <QSqlRelationalDelegate>
+
+QT_FORWARD_DECLARE_CLASS(QPainter)
+
+class BookDelegate : public QSqlRelationalDelegate
+{
+public:
+    BookDelegate(QObject *parent);
+
+    void paint(QPainter *painter, const QStyleOptionViewItem &option,
+               const QModelIndex &index) const;
+
+    QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const;
+
+    bool editorEvent(QEvent *event, QAbstractItemModel *model,
+                     const QStyleOptionViewItem &option,
+                     const QModelIndex &index);
+
+    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,
+                                        const QModelIndex &index) const;
+
+private:
+    QPixmap star;
+};
+
+#endif
diff --git a/demos/books/books.pro b/demos/books/books.pro
new file mode 100644
index 0000000..a2cd33f
--- /dev/null
+++ b/demos/books/books.pro
@@ -0,0 +1,21 @@
+TEMPLATE = app
+INCLUDEPATH += .
+
+HEADERS     = bookdelegate.h bookwindow.h initdb.h
+RESOURCES   = books.qrc
+SOURCES     = bookdelegate.cpp main.cpp bookwindow.cpp
+FORMS       = bookwindow.ui
+
+QT += sql
+
+target.path = $$[QT_INSTALL_DEMOS]/books
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS *.pro images
+sources.path = $$[QT_INSTALL_DEMOS]/books
+INSTALLS += target sources
+
+wince*: {
+    CONFIG(debug, debug|release):sqlPlugins.sources = $$QT_BUILD_TREE/plugins/sqldrivers/*d4.dll
+    CONFIG(release, debug|release):sqlPlugins.sources = $$QT_BUILD_TREE/plugins/sqldrivers/*[^d]4.dll
+    sqlPlugins.path = sqldrivers
+    DEPLOYMENT += sqlPlugins
+}
\ No newline at end of file
diff --git a/demos/books/books.qrc b/demos/books/books.qrc
new file mode 100644
index 0000000..342638e
--- /dev/null
+++ b/demos/books/books.qrc
@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="/">
+  <file>images/star.png</file>
+</qresource>
+</RCC>
diff --git a/demos/books/bookwindow.cpp b/demos/books/bookwindow.cpp
new file mode 100644
index 0000000..e73f727
--- /dev/null
+++ b/demos/books/bookwindow.cpp
@@ -0,0 +1,121 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "bookwindow.h"
+#include "bookdelegate.h"
+#include "initdb.h"
+
+#include <QtSql>
+
+BookWindow::BookWindow()
+{
+    ui.setupUi(this);
+
+    if (!QSqlDatabase::drivers().contains("QSQLITE"))
+        QMessageBox::critical(this, "Unable to load database", "This demo needs the SQLITE driver");
+
+    // initialize the database
+    QSqlError err = initDb();
+    if (err.type() != QSqlError::NoError) {
+        showError(err);
+        return;
+    }
+
+    // Create the data model
+    model = new QSqlRelationalTableModel(ui.bookTable);
+    model->setEditStrategy(QSqlTableModel::OnManualSubmit);
+    model->setTable("books");
+
+    // Remeber the indexes of the columns
+    authorIdx = model->fieldIndex("author");
+    genreIdx = model->fieldIndex("genre");
+
+    // Set the relations to the other database tables
+    model->setRelation(authorIdx, QSqlRelation("authors", "id", "name"));
+    model->setRelation(genreIdx, QSqlRelation("genres", "id", "name"));
+
+    // Set the localized header captions
+    model->setHeaderData(authorIdx, Qt::Horizontal, tr("Author Name"));
+    model->setHeaderData(genreIdx, Qt::Horizontal, tr("Genre"));
+    model->setHeaderData(model->fieldIndex("title"), Qt::Horizontal, tr("Title"));
+    model->setHeaderData(model->fieldIndex("year"), Qt::Horizontal, tr("Year"));
+    model->setHeaderData(model->fieldIndex("rating"), Qt::Horizontal, tr("Rating"));
+
+    // Populate the model
+    if (!model->select()) {
+        showError(model->lastError());
+        return;
+    }
+
+    // Set the model and hide the ID column
+    ui.bookTable->setModel(model);
+    ui.bookTable->setItemDelegate(new BookDelegate(ui.bookTable));
+    ui.bookTable->setColumnHidden(model->fieldIndex("id"), true);
+    ui.bookTable->setSelectionMode(QAbstractItemView::SingleSelection);
+
+    // Initialize the Author combo box
+    ui.authorEdit->setModel(model->relationModel(authorIdx));
+    ui.authorEdit->setModelColumn(model->relationModel(authorIdx)->fieldIndex("name"));
+
+    ui.genreEdit->setModel(model->relationModel(genreIdx));
+    ui.genreEdit->setModelColumn(model->relationModel(genreIdx)->fieldIndex("name"));
+
+    QDataWidgetMapper *mapper = new QDataWidgetMapper(this);
+    mapper->setModel(model);
+    mapper->setItemDelegate(new BookDelegate(this));
+    mapper->addMapping(ui.titleEdit, model->fieldIndex("title"));
+    mapper->addMapping(ui.yearEdit, model->fieldIndex("year"));
+    mapper->addMapping(ui.authorEdit, authorIdx);
+    mapper->addMapping(ui.genreEdit, genreIdx);
+    mapper->addMapping(ui.ratingEdit, model->fieldIndex("rating"));
+
+    connect(ui.bookTable->selectionModel(), SIGNAL(currentRowChanged(QModelIndex,QModelIndex)),
+            mapper, SLOT(setCurrentModelIndex(QModelIndex)));
+
+    ui.bookTable->setCurrentIndex(model->index(0, 0));
+}
+
+void BookWindow::showError(const QSqlError &err)
+{
+    QMessageBox::critical(this, "Unable to initialize Database",
+                "Error initializing database: " + err.text());
+}
+
diff --git a/demos/books/bookwindow.h b/demos/books/bookwindow.h
new file mode 100644
index 0000000..3cc69d0
--- /dev/null
+++ b/demos/books/bookwindow.h
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef BOOKWINDOW_H
+#define BOOKWINDOW_H
+
+#include <QtGui>
+#include <QtSql>
+
+#include "ui_bookwindow.h"
+
+
+class BookWindow: public QMainWindow
+{
+    Q_OBJECT
+public:
+    BookWindow();
+
+private:
+    void showError(const QSqlError &err);
+    Ui::BookWindow ui;
+    QSqlRelationalTableModel *model;
+    int authorIdx, genreIdx;
+};
+
+#endif
diff --git a/demos/books/bookwindow.ui b/demos/books/bookwindow.ui
new file mode 100644
index 0000000..659d324
--- /dev/null
+++ b/demos/books/bookwindow.ui
@@ -0,0 +1,149 @@
+<ui version="4.0" >
+ <author></author>
+ <comment></comment>
+ <exportmacro></exportmacro>
+ <class>BookWindow</class>
+ <widget class="QMainWindow" name="BookWindow" >
+ <property name="geometry" >
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>601</width>
+    <height>420</height>
+   </rect>
+  </property>
+  <property name="windowTitle" >
+   <string>Books</string>
+  </property>
+  <widget class="QWidget" name="centralWidget" >
+   <layout class="QVBoxLayout" >
+    <property name="margin" >
+     <number>9</number>
+    </property>
+    <property name="spacing" >
+     <number>6</number>
+    </property>
+    <item>
+     <widget class="QGroupBox" name="groupBox" >
+      <property name="title" >
+       <string>Books</string>
+      </property>
+      <layout class="QVBoxLayout" >
+       <property name="margin" >
+        <number>9</number>
+       </property>
+       <property name="spacing" >
+        <number>6</number>
+       </property>
+       <item>
+        <widget class="QTableView" name="bookTable" >
+         <property name="selectionBehavior" >
+          <enum>QAbstractItemView::SelectRows</enum>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QGroupBox" name="groupBox_2" >
+         <property name="title" >
+          <string>Details</string>
+         </property>
+         <layout class="QFormLayout" >
+	   <item row="0" column="0" >
+           <widget class="QLabel" name="label_5" >
+            <property name="text" >
+             <string>&lt;b>Title:&lt;/b></string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="1" >
+           <widget class="QLineEdit" name="titleEdit" >
+            <property name="enabled" >
+             <bool>true</bool>
+            </property>
+           </widget>
+          </item>
+          <item row="1" column="0" >
+           <widget class="QLabel" name="label_2_2_2_2" >
+            <property name="text" >
+             <string>&lt;b>Author: &lt;/b></string>
+            </property>
+           </widget>
+	    </item>
+	     <item row="1" column="1" >
+           <widget class="QComboBox" name="authorEdit" >
+            <property name="enabled" >
+             <bool>true</bool>
+            </property>
+           </widget>
+          </item>	   
+	  <item row="2" column="0" >
+           <widget class="QLabel" name="label_3" >
+            <property name="text" >
+             <string>&lt;b>Genre:&lt;/b></string>
+            </property>
+           </widget>
+          </item>
+          <item row="2" column="1" >
+           <widget class="QComboBox" name="genreEdit" >
+            <property name="enabled" >
+             <bool>true</bool>
+            </property>
+           </widget>
+          </item>
+          <item row="3" column="0" >
+           <widget class="QLabel" name="label_4" >
+            <property name="text" >
+             <string>&lt;b>Year:&lt;/b></string>
+            </property>
+           </widget>
+          </item>       
+          <item row="3" column="1" >
+           <widget class="QSpinBox" name="yearEdit" >
+            <property name="enabled" >
+             <bool>true</bool>
+            </property>
+            <property name="prefix" >
+             <string/>
+            </property>
+            <property name="maximum" >
+             <number>2100</number>
+            </property>
+            <property name="minimum" >
+             <number>-1000</number>
+            </property>
+           </widget>
+          </item>
+          <item row="4" column="0" >
+           <widget class="QLabel" name="label" >
+            <property name="text" >
+             <string>&lt;b>Rating:&lt;/b></string>
+            </property>
+           </widget>
+          </item>
+          <item row="4" column="1" >
+           <widget class="QSpinBox" name="ratingEdit" >
+            <property name="maximum" >
+             <number>5</number>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <pixmapfunction></pixmapfunction>
+ <tabstops>
+  <tabstop>bookTable</tabstop>
+  <tabstop>titleEdit</tabstop>
+  <tabstop>authorEdit</tabstop>
+  <tabstop>genreEdit</tabstop>
+  <tabstop>yearEdit</tabstop>
+ </tabstops>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/demos/books/images/star.png b/demos/books/images/star.png
new file mode 100644
index 0000000..87f4464
--- /dev/null
+++ b/demos/books/images/star.png
diff --git a/demos/books/initdb.h b/demos/books/initdb.h
new file mode 100644
index 0000000..f9a94b7
--- /dev/null
+++ b/demos/books/initdb.h
@@ -0,0 +1,125 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef INITDB_H
+#define INITDB_H
+
+#include <QtSql>
+
+void addBook(QSqlQuery &q, const QString &title, int year, const QVariant &authorId,
+             const QVariant &genreId, int rating)
+{
+    q.addBindValue(title);
+    q.addBindValue(year);
+    q.addBindValue(authorId);
+    q.addBindValue(genreId);
+    q.addBindValue(rating);
+    q.exec();
+}
+
+QVariant addGenre(QSqlQuery &q, const QString &name)
+{
+    q.addBindValue(name);
+    q.exec();
+    return q.lastInsertId();
+}
+
+QVariant addAuthor(QSqlQuery &q, const QString &name, const QDate &birthdate)
+{
+    q.addBindValue(name);
+    q.addBindValue(birthdate);
+    q.exec();
+    return q.lastInsertId();
+}
+
+QSqlError initDb()
+{
+    QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
+    db.setDatabaseName(":memory:");
+
+    if (!db.open())
+        return db.lastError();
+
+    QStringList tables = db.tables();
+    if (tables.contains("books", Qt::CaseInsensitive)
+        && tables.contains("authors", Qt::CaseInsensitive))
+        return QSqlError();
+
+    QSqlQuery q;
+    if (!q.exec(QLatin1String("create table books(id integer primary key, title varchar, author integer, genre integer, year integer, rating integer)")))
+        return q.lastError();
+    if (!q.exec(QLatin1String("create table authors(id integer primary key, name varchar, birthdate date)")))
+        return q.lastError();
+    if (!q.exec(QLatin1String("create table genres(id integer primary key, name varchar)")))
+        return q.lastError();
+
+    if (!q.prepare(QLatin1String("insert into authors(name, birthdate) values(?, ?)")))
+        return q.lastError();
+    QVariant asimovId = addAuthor(q, QLatin1String("Isaac Asimov"), QDate(1920, 2, 1));
+    QVariant greeneId = addAuthor(q, QLatin1String("Graham Greene"), QDate(1904, 10, 2));
+    QVariant pratchettId = addAuthor(q, QLatin1String("Terry Pratchett"), QDate(1948, 4, 28));
+
+    if (!q.prepare(QLatin1String("insert into genres(name) values(?)")))
+        return q.lastError();
+    QVariant sfiction = addGenre(q, QLatin1String("Science Fiction"));
+    QVariant fiction = addGenre(q, QLatin1String("Fiction"));
+    QVariant fantasy = addGenre(q, QLatin1String("Fantasy"));
+
+    if (!q.prepare(QLatin1String("insert into books(title, year, author, genre, rating) values(?, ?, ?, ?, ?)")))
+        return q.lastError();
+    addBook(q, QLatin1String("Foundation"), 1951, asimovId, sfiction, 3);
+    addBook(q, QLatin1String("Foundation and Empire"), 1952, asimovId, sfiction, 4);
+    addBook(q, QLatin1String("Second Foundation"), 1953, asimovId, sfiction, 3);
+    addBook(q, QLatin1String("Foundation's Edge"), 1982, asimovId, sfiction, 3);
+    addBook(q, QLatin1String("Foundation and Earth"), 1986, asimovId, sfiction, 4);
+    addBook(q, QLatin1String("Prelude to Foundation"), 1988, asimovId, sfiction, 3);
+    addBook(q, QLatin1String("Forward the Foundation"), 1993, asimovId, sfiction, 3);
+    addBook(q, QLatin1String("The Power and the Glory"), 1940, greeneId, fiction, 4);
+    addBook(q, QLatin1String("The Third Man"), 1950, greeneId, fiction, 5);
+    addBook(q, QLatin1String("Our Man in Havana"), 1958, greeneId, fiction, 4);
+    addBook(q, QLatin1String("Guards! Guards!"), 1989, pratchettId, fantasy, 3);
+    addBook(q, QLatin1String("Night Watch"), 2002, pratchettId, fantasy, 3);
+    addBook(q, QLatin1String("Going Postal"), 2004, pratchettId, fantasy, 3);
+
+    return QSqlError();
+}
+
+#endif
diff --git a/demos/books/main.cpp b/demos/books/main.cpp
new file mode 100644
index 0000000..f3ae325
--- /dev/null
+++ b/demos/books/main.cpp
@@ -0,0 +1,56 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "bookwindow.h"
+
+#include <QtGui>
+
+int main(int argc, char * argv[])
+{
+    Q_INIT_RESOURCE(books);
+
+    QApplication app(argc, argv);
+
+    BookWindow win;
+    win.show();
+
+    return app.exec();
+}