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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:18:55 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:18:55 (GMT)
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/sql/masterdetail
downloadQt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip
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Long live Qt 4.5!
Diffstat (limited to 'examples/sql/masterdetail')
-rw-r--r--examples/sql/masterdetail/albumdetails.xml98
-rw-r--r--examples/sql/masterdetail/database.h97
-rw-r--r--examples/sql/masterdetail/dialog.cpp283
-rw-r--r--examples/sql/masterdetail/dialog.h83
-rw-r--r--examples/sql/masterdetail/images/icon.pngbin0 -> 30095 bytes
-rw-r--r--examples/sql/masterdetail/images/image.pngbin0 -> 166692 bytes
-rw-r--r--examples/sql/masterdetail/main.cpp60
-rw-r--r--examples/sql/masterdetail/mainwindow.cpp430
-rw-r--r--examples/sql/masterdetail/mainwindow.h104
-rw-r--r--examples/sql/masterdetail/masterdetail.pro16
-rw-r--r--examples/sql/masterdetail/masterdetail.qrc6
11 files changed, 1177 insertions, 0 deletions
diff --git a/examples/sql/masterdetail/albumdetails.xml b/examples/sql/masterdetail/albumdetails.xml
new file mode 100644
index 0000000..aacbdac
--- /dev/null
+++ b/examples/sql/masterdetail/albumdetails.xml
@@ -0,0 +1,98 @@
+ <archive>
+ <album id="1" >
+ <track number="01" >Humming one of your songs</track>
+ <track number="02" >Are they saying goodbye</track>
+ <track number="03" >On off</track>
+ <track number="04" >I shot my heart</track>
+ <track number="05" >Drowning in Those Eyes</track>
+ <track number="06" >So you did it again</track>
+ <track number="07" >One more time</track>
+ <track number="08" >Headphone silence</track>
+ <track number="09" >What I want</track>
+ <track number="10" >Sleeping by the Fyris River</track>
+ <track number="11" >Wooden Body</track>
+ <track number="12" >Humming one of your songs (encore)</track>
+ </album>
+ <album id="2" >
+ <track number="01" >To let myself go</track>
+ <track number="02" >Rubber and Soul</track>
+ <track number="03" >Balloon ranger</track>
+ <track number="04" >My lover will go</track>
+ <track number="05" >Temporary dive</track>
+ <track number="06" >Laid in earth</track>
+ <track number="07" >This voice</track>
+ <track number="08" >Where friend rhymes with end</track>
+ <track number="09" >Song No.6 feat Ron Sexsmith</track>
+ <track number="10" >The Fight Song</track>
+ </album>
+ <album id="3" >
+ <track number="01" >From Grace</track>
+ <track number="02" >All's not last</track>
+ <track number="03" >That Great October Sound</track>
+ <track number="04" >Life Here Is Gold</track>
+ <track number="05" >Tomorrow Stays The Same</track>
+ <track number="06" >Postulate</track>
+ <track number="07" >Adelaide</track>
+ <track number="08" >John Wayne</track>
+ <track number="09" >Love's Lost</track>
+ <track number="10" >Dreamweaver</track>
+ <track number="11" >Outro</track>
+ </album>
+ <album id="4" >
+ <track number="01" >Rain down on me</track>
+ <track number="02" >Cecilia</track>
+ <track number="03" >Make a mess of yourself</track>
+ <track number="04" >Pale green eyes</track>
+ <track number="05" >Either way I'm gone</track>
+ <track number="06" >Honey</track>
+ <track number="07" >Rise in shame</track>
+ <track number="08" >Stray dogs</track>
+ <track number="09" >The willow</track>
+ <track number="10" >Stay home</track>
+ <track number="11" >Outro</track>
+ </album>
+ <album id="5" >
+ </album>
+ <album id="6" >
+ <track number="01" >Kontroll på kontinentet</track>
+ <track number="02" >Ompa til du dør</track>
+ <track number="03" >Bøn fra helvete</track>
+ <track number="04" >170</track>
+ <track number="05" >Rullett</track>
+ <track number="06" >Dr. Mowinckel</track>
+ <track number="07" >Fra sjåfør til passasjer</track>
+ <track number="08" >Resistansen</track>
+ <track number="09" >Dekk bord</track>
+ <track number="10" >Bak et halleluja</track>
+ <track number="11" >Bris</track>
+ <track number="12" >Mr. Kaizer, hans Constanze og meg</track>
+ </album>
+ <album id="7" >
+ <track number="01" >Di grind</track>
+ <track number="02" >Hevnervals</track>
+ <track number="03" >Evig pint</track>
+ <track number="04" >De involverte</track>
+ <track number="05" >Djevelens orkester</track>
+ <track number="06" >Container</track>
+ <track number="07" >Naade</track>
+ <track number="08" >Min kvite russer</track>
+ <track number="09" >Veterans klage</track>
+ <track number="10" >Til depotet</track>
+ <track number="11" >Salt og pepper</track>
+ <track number="12" >Drøm Hardt (Requiem Part I)</track>
+ </album>
+ <album id="8" >
+ <track number="01" >KGB</track>
+ <track number="02" >Maestro</track>
+ <track number="03" >Knekker deg til sist</track>
+ <track number="04" >Senor Flamingos Adieu</track>
+ <track number="05" >Blitzregn baby</track>
+ <track number="06" >Dieter Meyers Inst.</track>
+ <track number="07" >Christiania</track>
+ <track number="08" >Delikatessen</track>
+ <track number="09" >Jævel av en tango</track>
+ <track number="10" >Papa har lov</track>
+ <track number="11" >Auksjon (i Dieter Meyers hall)</track>
+ <track number="12" >På ditt skift</track>
+ </album>
+ </archive>
diff --git a/examples/sql/masterdetail/database.h b/examples/sql/masterdetail/database.h
new file mode 100644
index 0000000..a760e41
--- /dev/null
+++ b/examples/sql/masterdetail/database.h
@@ -0,0 +1,97 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 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 DATABASE_H
+#define DATABASE_H
+
+#include <QMessageBox>
+#include <QSqlDatabase>
+#include <QSqlError>
+#include <QSqlQuery>
+
+static bool createConnection()
+{
+ QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
+ db.setDatabaseName(":memory:");
+ if (!db.open()) {
+ QMessageBox::critical(0, qApp->tr("Cannot open database"),
+ qApp->tr("Unable to establish a database connection.\n"
+ "This example needs SQLite support. Please read "
+ "the Qt SQL driver documentation for information how "
+ "to build it.\n\n"
+ "Click Cancel to exit."), QMessageBox::Cancel);
+ return false;
+ }
+
+ QSqlQuery query;
+
+ query.exec("create table artists (id int primary key, "
+ "artist varchar(40), "
+ "albumcount int)");
+
+ query.exec("insert into artists values(0, '<all>', 0)");
+ query.exec("insert into artists values(1, 'Ane Brun', 2)");
+ query.exec("insert into artists values(2, 'Thomas Dybdahl', 3)");
+ query.exec("insert into artists values(3, 'Kaizers Orchestra', 3)");
+
+ query.exec("create table albums (albumid int primary key, "
+ "title varchar(50), "
+ "artistid int, "
+ "year int)");
+
+ query.exec("insert into albums values(1, 'Spending Time With Morgan', 1, "
+ "2003)");
+ query.exec("insert into albums values(2, 'A Temporary Dive', 1, 2005)");
+ query.exec("insert into albums values(3, '...The Great October Sound', 2, "
+ "2002)");
+ query.exec("insert into albums values(4, 'Stray Dogs', 2, 2003)");
+ query.exec("insert into albums values(5, "
+ "'One day you`ll dance for me, New York City', 2, 2004)");
+ query.exec("insert into albums values(6, 'Ompa Til Du D\xf8r', 3, 2001)");
+ query.exec("insert into albums values(7, 'Evig Pint', 3, 2002)");
+ query.exec("insert into albums values(8, 'Maestro', 3, 2005)");
+
+ return true;
+}
+
+#endif
+
+
diff --git a/examples/sql/masterdetail/dialog.cpp b/examples/sql/masterdetail/dialog.cpp
new file mode 100644
index 0000000..0adf208
--- /dev/null
+++ b/examples/sql/masterdetail/dialog.cpp
@@ -0,0 +1,283 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 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 "dialog.h"
+
+int uniqueAlbumId;
+int uniqueArtistId;
+
+Dialog::Dialog(QSqlRelationalTableModel *albums, QDomDocument details,
+ QFile *output, QWidget *parent)
+ : QDialog(parent)
+{
+ model = albums;
+ albumDetails = details;
+ outputFile = output;
+
+ QGroupBox *inputWidgetBox = createInputWidgets();
+ QDialogButtonBox *buttonBox = createButtons();
+
+ QVBoxLayout *layout = new QVBoxLayout;
+ layout->addWidget(inputWidgetBox);
+ layout->addWidget(buttonBox);
+ setLayout(layout);
+
+ setWindowTitle(tr("Add Album"));
+}
+
+void Dialog::submit()
+{
+ QString artist = artistEditor->text();
+ QString title = titleEditor->text();
+
+ if (artist.isEmpty() || title.isEmpty()) {
+ QString message(tr("Please provide both the name of the artist "
+ "and the title of the album."));
+ QMessageBox::information(this, tr("Add Album"), message);
+ } else {
+ int artistId = findArtistId(artist);
+ int albumId = addNewAlbum(title, artistId);
+
+ QStringList tracks;
+ tracks = tracksEditor->text().split(',', QString::SkipEmptyParts);
+ addTracks(albumId, tracks);
+
+ increaseAlbumCount(indexOfArtist(artist));
+ accept();
+ }
+}
+
+int Dialog::findArtistId(const QString &artist)
+{
+ QSqlTableModel *artistModel = model->relationModel(2);
+ int row = 0;
+
+ while (row < artistModel->rowCount()) {
+ QSqlRecord record = artistModel->record(row);
+ if (record.value("artist") == artist)
+ return record.value("id").toInt();
+ else
+ row++;
+ }
+ return addNewArtist(artist);
+}
+
+
+int Dialog::addNewArtist(const QString &name)
+{
+ QSqlTableModel *artistModel = model->relationModel(2);
+ QSqlRecord record;
+
+ int id = generateArtistId();
+
+ QSqlField f1("id", QVariant::Int);
+ QSqlField f2("artist", QVariant::String);
+ QSqlField f3("albumcount", QVariant::Int);
+
+ f1.setValue(QVariant(id));
+ f2.setValue(QVariant(name));
+ f3.setValue(QVariant(0));
+ record.append(f1);
+ record.append(f2);
+ record.append(f3);
+
+ artistModel->insertRecord(-1, record);
+ return id;
+}
+
+int Dialog::addNewAlbum(const QString &title, int artistId)
+{
+ int id = generateAlbumId();
+ QSqlRecord record;
+
+ QSqlField f1("albumid", QVariant::Int);
+ QSqlField f2("title", QVariant::String);
+ QSqlField f3("artistid", QVariant::Int);
+ QSqlField f4("year", QVariant::Int);
+
+ f1.setValue(QVariant(id));
+ f2.setValue(QVariant(title));
+ f3.setValue(QVariant(artistId));
+ f4.setValue(QVariant(yearEditor->value()));
+ record.append(f1);
+ record.append(f2);
+ record.append(f3);
+ record.append(f4);
+
+ model->insertRecord(-1, record);
+ return id;
+}
+
+void Dialog::addTracks(int albumId, QStringList tracks)
+{
+ QDomElement albumNode = albumDetails.createElement("album");
+ albumNode.setAttribute("id", albumId);
+
+ for (int i = 0; i < tracks.count(); i++) {
+ QString trackNumber = QString::number(i);
+ if (i < 10)
+ trackNumber.prepend("0");
+
+ QDomText textNode = albumDetails.createTextNode(tracks.at(i));
+
+ QDomElement trackNode = albumDetails.createElement("track");
+ trackNode.setAttribute("number", trackNumber);
+ trackNode.appendChild(textNode);
+
+ albumNode.appendChild(trackNode);
+ }
+
+ QDomNodeList archive = albumDetails.elementsByTagName("archive");
+ archive.item(0).appendChild(albumNode);
+
+/*
+ The following code is commented out since the example uses an in
+ memory database, i.e., altering the XML file will bring the data
+ out of sync.
+
+ if (!outputFile->open(QIODevice::WriteOnly)) {
+ return;
+ } else {
+ QTextStream stream(outputFile);
+ archive.item(0).save(stream, 4);
+ outputFile->close();
+ }
+*/
+}
+
+void Dialog::increaseAlbumCount(QModelIndex artistIndex)
+{
+ QSqlTableModel *artistModel = model->relationModel(2);
+
+ QModelIndex albumCountIndex;
+ albumCountIndex = artistIndex.sibling(artistIndex.row(), 2);
+
+ int albumCount = albumCountIndex.data().toInt();
+ artistModel->setData(albumCountIndex, QVariant(albumCount + 1));
+}
+
+
+void Dialog::revert()
+{
+ artistEditor->clear();
+ titleEditor->clear();
+ yearEditor->setValue(QDate::currentDate().year());
+ tracksEditor->clear();
+}
+
+QGroupBox *Dialog::createInputWidgets()
+{
+ QGroupBox *box = new QGroupBox(tr("Add Album"));
+
+ QLabel *artistLabel = new QLabel(tr("Artist:"));
+ QLabel *titleLabel = new QLabel(tr("Title:"));
+ QLabel *yearLabel = new QLabel(tr("Year:"));
+ QLabel *tracksLabel = new QLabel(tr("Tracks (separated by comma):"));
+
+ artistEditor = new QLineEdit;
+ titleEditor = new QLineEdit;
+
+ yearEditor = new QSpinBox;
+ yearEditor->setMinimum(1900);
+ yearEditor->setMaximum(QDate::currentDate().year());
+ yearEditor->setValue(yearEditor->maximum());
+ yearEditor->setReadOnly(false);
+
+ tracksEditor = new QLineEdit;
+
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(artistLabel, 0, 0);
+ layout->addWidget(artistEditor, 0, 1);
+ layout->addWidget(titleLabel, 1, 0);
+ layout->addWidget(titleEditor, 1, 1);
+ layout->addWidget(yearLabel, 2, 0);
+ layout->addWidget(yearEditor, 2, 1);
+ layout->addWidget(tracksLabel, 3, 0, 1, 2);
+ layout->addWidget(tracksEditor, 4, 0, 1, 2);
+ box->setLayout(layout);
+
+ return box;
+}
+
+QDialogButtonBox *Dialog::createButtons()
+{
+ QPushButton *closeButton = new QPushButton(tr("&Close"));
+ QPushButton *revertButton = new QPushButton(tr("&Revert"));
+ QPushButton *submitButton = new QPushButton(tr("&Submit"));
+
+ closeButton->setDefault(true);
+
+ connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));
+ connect(revertButton, SIGNAL(clicked()), this, SLOT(revert()));
+ connect(submitButton, SIGNAL(clicked()), this, SLOT(submit()));
+
+ QDialogButtonBox *buttonBox = new QDialogButtonBox;
+ buttonBox->addButton(submitButton, QDialogButtonBox::ResetRole);
+ buttonBox->addButton(revertButton, QDialogButtonBox::ResetRole);
+ buttonBox->addButton(closeButton, QDialogButtonBox::RejectRole);
+
+ return buttonBox;
+}
+
+QModelIndex Dialog::indexOfArtist(const QString &artist)
+{
+ QSqlTableModel *artistModel = model->relationModel(2);
+
+ for (int i = 0; i < artistModel->rowCount(); i++) {
+ QSqlRecord record = artistModel->record(i);
+ if (record.value("artist") == artist)
+ return artistModel->index(i, 1);
+ }
+
+ return QModelIndex();
+}
+
+int Dialog::generateArtistId()
+{
+ uniqueArtistId += 1;
+ return uniqueArtistId;
+}
+
+int Dialog::generateAlbumId()
+{
+ uniqueAlbumId += 1;
+ return uniqueAlbumId;
+}
diff --git a/examples/sql/masterdetail/dialog.h b/examples/sql/masterdetail/dialog.h
new file mode 100644
index 0000000..0f4b54a
--- /dev/null
+++ b/examples/sql/masterdetail/dialog.h
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 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 DIALOG_H
+#define DIALOG_H
+
+#include <QtGui>
+#include <QtSql>
+#include <QtXml>
+
+class Dialog : public QDialog
+{
+ Q_OBJECT
+
+public:
+ Dialog(QSqlRelationalTableModel *albums, QDomDocument details,
+ QFile *output, QWidget *parent = 0);
+
+private slots:
+ void revert();
+ void submit();
+
+private:
+ int addNewAlbum(const QString &title, int artistId);
+ int addNewArtist(const QString &name);
+ void addTracks(int albumId, QStringList tracks);
+ QDialogButtonBox *createButtons();
+ QGroupBox *createInputWidgets();
+ int findArtistId(const QString &artist);
+ int generateAlbumId();
+ int generateArtistId();
+ void increaseAlbumCount(QModelIndex artistIndex);
+ QModelIndex indexOfArtist(const QString &artist);
+
+ QSqlRelationalTableModel *model;
+ QDomDocument albumDetails;
+ QFile *outputFile;
+
+ QLineEdit *artistEditor;
+ QLineEdit *titleEditor;
+ QSpinBox *yearEditor;
+ QLineEdit *tracksEditor;
+};
+
+#endif
diff --git a/examples/sql/masterdetail/images/icon.png b/examples/sql/masterdetail/images/icon.png
new file mode 100644
index 0000000..31f68b8
--- /dev/null
+++ b/examples/sql/masterdetail/images/icon.png
Binary files differ
diff --git a/examples/sql/masterdetail/images/image.png b/examples/sql/masterdetail/images/image.png
new file mode 100644
index 0000000..1d78037
--- /dev/null
+++ b/examples/sql/masterdetail/images/image.png
Binary files differ
diff --git a/examples/sql/masterdetail/main.cpp b/examples/sql/masterdetail/main.cpp
new file mode 100644
index 0000000..932b67a
--- /dev/null
+++ b/examples/sql/masterdetail/main.cpp
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 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 <QtGui>
+
+#include "database.h"
+#include "mainwindow.h"
+
+int main(int argc, char *argv[])
+{
+ Q_INIT_RESOURCE(masterdetail);
+
+ QApplication app(argc, argv);
+
+ if (!createConnection())
+ return 1;
+
+ QFile *albumDetails = new QFile("albumdetails.xml");
+ MainWindow window("artists", "albums", albumDetails);
+ window.show();
+ return app.exec();
+}
diff --git a/examples/sql/masterdetail/mainwindow.cpp b/examples/sql/masterdetail/mainwindow.cpp
new file mode 100644
index 0000000..67825d6
--- /dev/null
+++ b/examples/sql/masterdetail/mainwindow.cpp
@@ -0,0 +1,430 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 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 "mainwindow.h"
+#include "dialog.h"
+
+#include <QtGui>
+#include <QtSql>
+#include <QtXml>
+
+extern int uniqueAlbumId;
+extern int uniqueArtistId;
+
+MainWindow::MainWindow(const QString &artistTable, const QString &albumTable,
+ QFile *albumDetails, QWidget *parent)
+ : QMainWindow(parent)
+{
+ file = albumDetails;
+ readAlbumData();
+
+ model = new QSqlRelationalTableModel(this);
+ model->setTable(albumTable);
+ model->setRelation(2, QSqlRelation(artistTable, "id", "artist"));
+ model->select();
+
+ QGroupBox *artists = createArtistGroupBox();
+ QGroupBox *albums = createAlbumGroupBox();
+ QGroupBox *details = createDetailsGroupBox();
+
+ artistView->setCurrentIndex(0);
+ uniqueAlbumId = model->rowCount();
+ uniqueArtistId = artistView->count();
+
+ connect(model, SIGNAL(rowsInserted(QModelIndex, int, int)),
+ this, SLOT(updateHeader(QModelIndex, int, int)));
+ connect(model, SIGNAL(rowsRemoved(QModelIndex, int, int)),
+ this, SLOT(updateHeader(QModelIndex, int, int)));
+
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(artists, 0, 0);
+ layout->addWidget(albums, 1, 0);
+ layout->addWidget(details, 0, 1, 2, 1);
+ layout->setColumnStretch(1, 1);
+ layout->setColumnMinimumWidth(0, 500);
+
+ QWidget *widget = new QWidget;
+ widget->setLayout(layout);
+ setCentralWidget(widget);
+ createMenuBar();
+
+ showImageLabel();
+ resize(850, 400);
+ setWindowTitle(tr("Music Archive"));
+}
+
+void MainWindow::changeArtist(int row)
+{
+ if (row > 0) {
+ QModelIndex index = model->relationModel(2)->index(row, 1);
+ model->setFilter("artist = '" + index.data().toString() + '\'') ;
+ showArtistProfile(index);
+ } else if (row == 0) {
+ model->setFilter(QString());
+ showImageLabel();
+ } else {
+ return;
+ }
+}
+
+void MainWindow::showArtistProfile(QModelIndex index)
+{
+ QSqlRecord record = model->relationModel(2)->record(index.row());
+
+ QString name = record.value("artist").toString();
+ QString count = record.value("albumcount").toString();
+ profileLabel->setText(tr("Artist : %1 \n" \
+ "Number of Albums: %2").arg(name).arg(count));
+
+ profileLabel->show();
+ iconLabel->show();
+
+ titleLabel->hide();
+ trackList->hide();
+ imageLabel->hide();
+}
+
+void MainWindow::showAlbumDetails(QModelIndex index)
+{
+ QSqlRecord record = model->record(index.row());
+
+ QString artist = record.value("artist").toString();
+ QString title = record.value("title").toString();
+ QString year = record.value("year").toString();
+ QString albumId = record.value("albumid").toString();
+
+ showArtistProfile(indexOfArtist(artist));
+ titleLabel->setText(tr("Title: %1 (%2)").arg(title).arg(year));
+ titleLabel->show();
+
+ QDomNodeList albums = albumData.elementsByTagName("album");
+ for (int i = 0; i < albums.count(); i++) {
+ QDomNode album = albums.item(i);
+ if (album.toElement().attribute("id") == albumId) {
+ getTrackList(album.toElement());
+ break;
+ }
+ }
+ if (!trackList->count() == 0)
+ trackList->show();
+}
+
+void MainWindow::getTrackList(QDomNode album)
+{
+ trackList->clear();
+
+ QDomNodeList tracks = album.childNodes();
+ QDomNode track;
+ QString trackNumber;
+
+ for (int j = 0; j < tracks.count(); j++) {
+
+ track = tracks.item(j);
+ trackNumber = track.toElement().attribute("number");
+
+ QListWidgetItem *item = new QListWidgetItem(trackList);
+ item->setText(trackNumber + ": " + track.toElement().text());
+ }
+}
+
+void MainWindow::addAlbum()
+{
+ Dialog *dialog = new Dialog(model, albumData, file, this);
+ int accepted = dialog->exec();
+
+ if (accepted == 1) {
+ int lastRow = model->rowCount() - 1;
+ albumView->selectRow(lastRow);
+ albumView->scrollToBottom();
+ showAlbumDetails(model->index(lastRow, 0));
+ }
+}
+
+void MainWindow::deleteAlbum()
+{
+ QModelIndexList selection = albumView->selectionModel()->selectedRows(0);
+
+ if (!selection.empty()) {
+ QModelIndex idIndex = selection.at(0);
+ int id = idIndex.data().toInt();
+ QString title = idIndex.sibling(idIndex.row(), 1).data().toString();
+ QString artist = idIndex.sibling(idIndex.row(), 2).data().toString();
+
+ QMessageBox::StandardButton button;
+ button = QMessageBox::question(this, tr("Delete Album"),
+ QString(tr("Are you sure you want to " \
+ "delete '%1' by '%2'?"))
+ .arg(title).arg(artist),
+ QMessageBox::Yes | QMessageBox::No);
+
+ if (button == QMessageBox::Yes) {
+ removeAlbumFromFile(id);
+ removeAlbumFromDatabase(idIndex);
+ decreaseAlbumCount(indexOfArtist(artist));
+
+ showImageLabel();
+ }
+ } else {
+ QMessageBox::information(this, tr("Delete Album"),
+ tr("Select the album you want to delete."));
+ }
+}
+
+void MainWindow::removeAlbumFromFile(int id)
+{
+
+ QDomNodeList albums = albumData.elementsByTagName("album");
+
+ for (int i = 0; i < albums.count(); i++) {
+ QDomNode node = albums.item(i);
+ if (node.toElement().attribute("id").toInt() == id) {
+ albumData.elementsByTagName("archive").item(0).removeChild(node);
+ break;
+ }
+ }
+/*
+ The following code is commented out since the example uses an in
+ memory database, i.e., altering the XML file will bring the data
+ out of sync.
+
+ if (!file->open(QIODevice::WriteOnly)) {
+ return;
+ } else {
+ QTextStream stream(file);
+ albumData.elementsByTagName("archive").item(0).save(stream, 4);
+ file->close();
+ }
+*/
+}
+
+void MainWindow::removeAlbumFromDatabase(QModelIndex index)
+{
+ model->removeRow(index.row());
+}
+
+void MainWindow::decreaseAlbumCount(QModelIndex artistIndex)
+{
+ int row = artistIndex.row();
+ QModelIndex albumCountIndex = artistIndex.sibling(row, 2);
+ int albumCount = albumCountIndex.data().toInt();
+
+ QSqlTableModel *artists = model->relationModel(2);
+
+ if (albumCount == 1) {
+ artists->removeRow(row);
+ showImageLabel();
+ } else {
+ artists->setData(albumCountIndex, QVariant(albumCount - 1));
+ }
+}
+
+void MainWindow::readAlbumData()
+{
+ if (!file->open(QIODevice::ReadOnly))
+ return;
+
+ if (!albumData.setContent(file)) {
+ file->close();
+ return;
+ }
+ file->close();
+}
+
+QGroupBox* MainWindow::createArtistGroupBox()
+{
+ artistView = new QComboBox;
+ artistView->setModel(model->relationModel(2));
+ artistView->setModelColumn(1);
+
+ connect(artistView, SIGNAL(currentIndexChanged(int)),
+ this, SLOT(changeArtist(int)));
+
+ QGroupBox *box = new QGroupBox(tr("Artist"));
+
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(artistView, 0, 0);
+ box->setLayout(layout);
+
+ return box;
+}
+
+QGroupBox* MainWindow::createAlbumGroupBox()
+{
+ QGroupBox *box = new QGroupBox(tr("Album"));
+
+ albumView = new QTableView;
+ albumView->setEditTriggers(QAbstractItemView::NoEditTriggers);
+ albumView->setSortingEnabled(true);
+ albumView->setSelectionBehavior(QAbstractItemView::SelectRows);
+ albumView->setSelectionMode(QAbstractItemView::SingleSelection);
+ albumView->setShowGrid(false);
+ albumView->verticalHeader()->hide();
+ albumView->setAlternatingRowColors(true);
+ albumView->setModel(model);
+ adjustHeader();
+
+ QLocale locale = albumView->locale();
+ locale.setNumberOptions(QLocale::OmitGroupSeparator);
+ albumView->setLocale(locale);
+
+ connect(albumView, SIGNAL(clicked(QModelIndex)),
+ this, SLOT(showAlbumDetails(QModelIndex)));
+ connect(albumView, SIGNAL(activated(QModelIndex)),
+ this, SLOT(showAlbumDetails(QModelIndex)));
+
+ QVBoxLayout *layout = new QVBoxLayout;
+ layout->addWidget(albumView, 0, 0);
+ box->setLayout(layout);
+
+ return box;
+}
+
+QGroupBox* MainWindow::createDetailsGroupBox()
+{
+ QGroupBox *box = new QGroupBox(tr("Details"));
+
+ profileLabel = new QLabel;
+ profileLabel->setWordWrap(true);
+ profileLabel->setAlignment(Qt::AlignBottom);
+
+ titleLabel = new QLabel;
+ titleLabel->setWordWrap(true);
+ titleLabel->setAlignment(Qt::AlignBottom);
+
+ iconLabel = new QLabel();
+ iconLabel->setAlignment(Qt::AlignBottom | Qt::AlignRight);
+ iconLabel->setPixmap(QPixmap(":/images/icon.png"));
+
+ imageLabel = new QLabel;
+ imageLabel->setWordWrap(true);
+ imageLabel->setAlignment(Qt::AlignCenter);
+ imageLabel->setPixmap(QPixmap(":/images/image.png"));
+
+ trackList = new QListWidget;
+
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(imageLabel, 0, 0, 3, 2);
+ layout->addWidget(profileLabel, 0, 0);
+ layout->addWidget(iconLabel, 0, 1);
+ layout->addWidget(titleLabel, 1, 0, 1, 2);
+ layout->addWidget(trackList, 2, 0, 1, 2);
+ layout->setRowStretch(2, 1);
+ box->setLayout(layout);
+
+ return box;
+}
+
+void MainWindow::createMenuBar()
+{
+ QAction *addAction = new QAction(tr("&Add album..."), this);
+ QAction *deleteAction = new QAction(tr("&Delete album..."), this);
+ QAction *quitAction = new QAction(tr("&Quit"), this);
+ QAction *aboutAction = new QAction(tr("&About"), this);
+ QAction *aboutQtAction = new QAction(tr("About &Qt"), this);
+
+ addAction->setShortcut(tr("Ctrl+A"));
+ deleteAction->setShortcut(tr("Ctrl+D"));
+ quitAction->setShortcut(tr("Ctrl+Q"));
+
+ QMenu *fileMenu = menuBar()->addMenu(tr("&File"));
+ fileMenu->addAction(addAction);
+ fileMenu->addAction(deleteAction);
+ fileMenu->addSeparator();
+ fileMenu->addAction(quitAction);
+
+ QMenu *helpMenu = menuBar()->addMenu(tr("&Help"));
+ helpMenu->addAction(aboutAction);
+ helpMenu->addAction(aboutQtAction);
+
+ connect(addAction, SIGNAL(triggered(bool)), this, SLOT(addAlbum()));
+ connect(deleteAction, SIGNAL(triggered(bool)), this, SLOT(deleteAlbum()));
+ connect(quitAction, SIGNAL(triggered(bool)), this, SLOT(close()));
+ connect(aboutAction, SIGNAL(triggered(bool)), this, SLOT(about()));
+ connect(aboutQtAction, SIGNAL(triggered(bool)), qApp, SLOT(aboutQt()));
+}
+
+void MainWindow::showImageLabel()
+{
+ profileLabel->hide();
+ titleLabel->hide();
+ iconLabel->hide();
+ trackList->hide();
+
+ imageLabel->show();
+}
+
+QModelIndex MainWindow::indexOfArtist(const QString &artist)
+{
+ QSqlTableModel *artistModel = model->relationModel(2);
+
+ for (int i = 0; i < artistModel->rowCount(); i++) {
+ QSqlRecord record = artistModel->record(i);
+ if (record.value("artist") == artist)
+ return artistModel->index(i, 1);
+ }
+ return QModelIndex();
+}
+
+void MainWindow::updateHeader(QModelIndex, int, int)
+{
+ adjustHeader();
+}
+
+void MainWindow::adjustHeader()
+{
+ albumView->hideColumn(0);
+ albumView->horizontalHeader()->setResizeMode(1, QHeaderView::Stretch);
+ albumView->resizeColumnToContents(2);
+ albumView->resizeColumnToContents(3);
+}
+
+void MainWindow::about()
+{
+ QMessageBox::about(this, tr("About Music Archive"),
+ tr("<p>The <b>Music Archive</b> example shows how to present "
+ "data from different data sources in the same application. "
+ "The album titles, and the corresponding artists and release dates, "
+ "are kept in a database, while each album's tracks are stored "
+ "in an XML file. </p><p>The example also shows how to add as "
+ "well as remove data from both the database and the "
+ "associated XML file using the API provided by the QtSql and "
+ "QtXml modules, respectively.</p>"));
+}
diff --git a/examples/sql/masterdetail/mainwindow.h b/examples/sql/masterdetail/mainwindow.h
new file mode 100644
index 0000000..4d05022
--- /dev/null
+++ b/examples/sql/masterdetail/mainwindow.h
@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 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 MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QDomDocument>
+#include <QMainWindow>
+#include <QModelIndex>
+
+QT_BEGIN_NAMESPACE
+class QComboBox;
+class QFile;
+class QGroupBox;
+class QLabel;
+class QListWidget;
+class QSqlRelationalTableModel;
+class QTableView;
+QT_END_NAMESPACE
+
+class MainWindow : public QMainWindow
+{
+ Q_OBJECT
+
+public:
+ MainWindow(const QString &artistTable, const QString &albumTable,
+ QFile *albumDetails, QWidget *parent = 0);
+
+private slots:
+ void about();
+ void addAlbum();
+ void changeArtist(int row);
+ void deleteAlbum();
+ void showAlbumDetails(QModelIndex index);
+ void showArtistProfile(QModelIndex index);
+ void updateHeader(QModelIndex, int, int);
+
+private:
+ void adjustHeader();
+ QGroupBox *createAlbumGroupBox();
+ QGroupBox *createArtistGroupBox();
+ QGroupBox *createDetailsGroupBox();
+ void createMenuBar();
+ void decreaseAlbumCount(QModelIndex artistIndex);
+ void getTrackList(QDomNode album);
+ QModelIndex indexOfArtist(const QString &artist);
+ void readAlbumData();
+ void removeAlbumFromDatabase(QModelIndex album);
+ void removeAlbumFromFile(int id);
+ void showImageLabel();
+
+ QTableView *albumView;
+ QComboBox *artistView;
+ QListWidget *trackList;
+
+ QLabel *iconLabel;
+ QLabel *imageLabel;
+ QLabel *profileLabel;
+ QLabel *titleLabel;
+
+ QDomDocument albumData;
+ QFile *file;
+ QSqlRelationalTableModel *model;
+};
+
+#endif
diff --git a/examples/sql/masterdetail/masterdetail.pro b/examples/sql/masterdetail/masterdetail.pro
new file mode 100644
index 0000000..205c544
--- /dev/null
+++ b/examples/sql/masterdetail/masterdetail.pro
@@ -0,0 +1,16 @@
+HEADERS = database.h \
+ dialog.h \
+ mainwindow.h
+RESOURCES = masterdetail.qrc
+SOURCES = dialog.cpp \
+ main.cpp \
+ mainwindow.cpp
+
+QT += sql
+QT += xml
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/sql/masterdetail
+sources.files = $$SOURCES *.h $$RESOURCES $$FORMS masterdetail.pro *.xml images
+sources.path = $$[QT_INSTALL_EXAMPLES]/sql/masterdetail
+INSTALLS += target sources
diff --git a/examples/sql/masterdetail/masterdetail.qrc b/examples/sql/masterdetail/masterdetail.qrc
new file mode 100644
index 0000000..717c2eb
--- /dev/null
+++ b/examples/sql/masterdetail/masterdetail.qrc
@@ -0,0 +1,6 @@
+<!DOCTYPE RCC><RCC version="1.0">
+ <qresource>
+ <file>images/icon.png</file>
+ <file>images/image.png</file>
+ </qresource>
+</RCC>