Add Qt3 development HEAD version

19 files changed, 1343 insertions, 0 deletions

diff --git a/examples/network/infoprotocol/infoclient/client.cpp b/examples/network/infoprotocol/infoclient/client.cpp
new file mode 100644
index 0000000..89bcfd2
--- /dev/null
+++ b/examples/network/infoprotocol/infoclient/client.cpp
@@ -0,0 +1,120 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qsocket.h>
+#include <qapplication.h>
+#include <qtextedit.h>
+#include <qlineedit.h>
+#include <qlabel.h>
+#include <qpushbutton.h>
+#include <qtextstream.h>
+#include <qlistbox.h>
+
+#include "client.h"
+
+
+ClientInfo::ClientInfo( QWidget *parent, const char *name ) :
+    ClientInfoBase( parent, name ), socket( 0 )
+{
+    edHost->setText( "localhost" );
+    edPort->setText( QString::number( (uint)infoPort ) );
+
+    connect( infoList, SIGNAL(selected(const QString&)), SLOT(selectItem(const QString&)) );
+    connect( btnConnect, SIGNAL(clicked()), SLOT(connectToServer()) );
+    connect( btnBack, SIGNAL(clicked()), SLOT(stepBack()) );
+    connect( btnQuit, SIGNAL(clicked()), qApp, SLOT(quit()) );
+}
+
+
+void ClientInfo::connectToServer()
+{
+    delete socket;
+    socket = new QSocket( this );
+    connect( socket, SIGNAL(connected()), SLOT(socketConnected()) );
+    connect( socket, SIGNAL(connectionClosed()), SLOT(socketConnectionClosed()) );
+    connect( socket, SIGNAL(readyRead()), SLOT(socketReadyRead()) );
+    connect( socket, SIGNAL(error(int)), SLOT(socketError(int)) );
+
+    socket->connectToHost( edHost->text(), edPort->text().toInt() );
+}
+
+void ClientInfo::selectItem( const QString& item )
+{
+    // item in listBox selected, use LIST or GET depending of the node type.
+    if ( item.endsWith( "/" ) ) {
+	sendToServer( List, infoPath->text() + item );
+	infoPath->setText( infoPath->text() + item );
+    } else 
+	sendToServer( Get, infoPath->text() + item );
+}
+
+void ClientInfo::stepBack()
+{
+    // go back (up) in path hierarchy
+    int i = infoPath->text().findRev( '/', -2 );
+    if ( i > 0 ) 
+	infoPath->setText( infoPath->text().left( i + 1 ) );
+    else
+	infoPath->setText( "/" );
+    infoList->clear();
+    sendToServer( List, infoPath->text() );
+}
+
+
+void ClientInfo::socketConnected()
+{
+    sendToServer( List, "/" );
+}
+
+void ClientInfo::sendToServer( Operation op, const QString& location )
+{
+    QString line;
+    switch (op) {
+	case List:
+	    infoList->clear();
+	    line = "LIST " + location;
+	    break;
+	case Get:
+	    line = "GET " + location;
+	    break;
+    }
+    infoText->clear();
+    QTextStream os(socket);
+    os << line << "\r\n";
+}
+
+void ClientInfo::socketReadyRead()
+{
+    QTextStream stream( socket );
+    QString line;
+    while ( socket->canReadLine() ) {
+	line = stream.readLine();
+	if ( line.startsWith( "500" ) || line.startsWith( "550" ) ) {
+	    infoText->append( tr( "error: " ) + line.mid( 4 ) );
+	} else if ( line.startsWith( "212+" ) ) {
+	    infoList->insertItem( line.mid( 6 ) + QString( ( line[ 4 ] == 'D' ) ? "/" : "" ) );
+	} else if ( line.startsWith( "213+" ) ) {
+	    infoText->append( line.mid( 4 ) );
+	}
+    }
+}
+
+
+void ClientInfo::socketConnectionClosed()
+{
+    infoText->clear();
+    infoText->append( tr( "error: Connection closed by the server\n" ) );
+}
+
+void ClientInfo::socketError( int code )
+{
+    infoText->clear();
+    infoText->append( tr( "error: Error number %1 occurred\n" ).arg( code ) );
+}
+
diff --git a/examples/network/infoprotocol/infoclient/client.h b/examples/network/infoprotocol/infoclient/client.h
new file mode 100644
index 0000000..a3e09af
--- /dev/null
+++ b/examples/network/infoprotocol/infoclient/client.h
@@ -0,0 +1,47 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#ifndef CLIENT_H
+#define CLIENT_H
+
+#include "clientbase.h"
+
+class QSocket;
+class QTextEdit;
+class QLineEdit;
+class QListBox;
+class QLabel;
+
+static const Q_UINT16 infoPort = 42417;
+
+class ClientInfo : public ClientInfoBase
+{
+    Q_OBJECT
+public:
+    ClientInfo( QWidget *parent = 0, const char *name = 0 );
+
+private:
+    enum Operation { List, Get };
+
+private slots:
+    void connectToServer();
+    void selectItem( const QString& item );
+    void stepBack();
+    void sendToServer( Operation op, const QString& location );
+    void socketConnected();
+    void socketReadyRead();
+    void socketConnectionClosed();
+    void socketError( int code );
+
+private:
+    QSocket *socket;
+};
+
+#endif // CLIENT_H
+
diff --git a/examples/network/infoprotocol/infoclient/clientbase.ui b/examples/network/infoprotocol/infoclient/clientbase.ui
new file mode 100644
index 0000000..3f73c9a
--- /dev/null
+++ b/examples/network/infoprotocol/infoclient/clientbase.ui
@@ -0,0 +1,276 @@
+<!DOCTYPE UI><UI version="3.0" stdsetdef="1">
+<class>ClientInfoBase</class>
+<widget class="QWidget">
+    <property name="name">
+        <cstring>ClientInfoBase</cstring>
+    </property>
+    <property name="geometry">
+        <rect>
+            <x>0</x>
+            <y>0</y>
+            <width>384</width>
+            <height>488</height>
+        </rect>
+    </property>
+    <property name="caption">
+        <string>Info Client</string>
+    </property>
+    <vbox>
+        <property name="name">
+            <cstring>unnamed</cstring>
+        </property>
+        <property name="margin">
+            <number>11</number>
+        </property>
+        <property name="spacing">
+            <number>6</number>
+        </property>
+        <widget class="QLayoutWidget">
+            <property name="name">
+                <cstring>Layout15</cstring>
+            </property>
+            <hbox>
+                <property name="name">
+                    <cstring>unnamed</cstring>
+                </property>
+                <property name="margin">
+                    <number>0</number>
+                </property>
+                <property name="spacing">
+                    <number>6</number>
+                </property>
+                <widget class="QPushButton">
+                    <property name="name">
+                        <cstring>btnConnect</cstring>
+                    </property>
+                    <property name="text">
+                        <string>&amp;Connect</string>
+                    </property>
+                </widget>
+                <widget class="QLabel">
+                    <property name="name">
+                        <cstring>TextLabel1</cstring>
+                    </property>
+                    <property name="text">
+                        <string>Host:</string>
+                    </property>
+                </widget>
+                <widget class="QLineEdit">
+                    <property name="name">
+                        <cstring>edHost</cstring>
+                    </property>
+                    <property name="sizePolicy">
+                        <sizepolicy>
+                            <hsizetype>7</hsizetype>
+                            <vsizetype>0</vsizetype>
+                            <horstretch>1</horstretch>
+                            <verstretch>0</verstretch>
+                        </sizepolicy>
+                    </property>
+                    <property name="text">
+                        <string></string>
+                    </property>
+                </widget>
+                <widget class="QLabel">
+                    <property name="name">
+                        <cstring>TextLabel2_2</cstring>
+                    </property>
+                    <property name="text">
+                        <string>Port:</string>
+                    </property>
+                </widget>
+                <widget class="QLineEdit">
+                    <property name="name">
+                        <cstring>edPort</cstring>
+                    </property>
+                </widget>
+            </hbox>
+        </widget>
+        <widget class="QSplitter">
+            <property name="name">
+                <cstring>Splitter4</cstring>
+            </property>
+            <property name="orientation">
+                <enum>Vertical</enum>
+            </property>
+            <widget class="QLayoutWidget">
+                <property name="name">
+                    <cstring>Layout16</cstring>
+                </property>
+                <vbox>
+                    <property name="name">
+                        <cstring>unnamed</cstring>
+                    </property>
+                    <property name="margin">
+                        <number>0</number>
+                    </property>
+                    <property name="spacing">
+                        <number>6</number>
+                    </property>
+                    <widget class="QLayoutWidget">
+                        <property name="name">
+                            <cstring>Layout14</cstring>
+                        </property>
+                        <hbox>
+                            <property name="name">
+                                <cstring>unnamed</cstring>
+                            </property>
+                            <property name="margin">
+                                <number>0</number>
+                            </property>
+                            <property name="spacing">
+                                <number>6</number>
+                            </property>
+                            <widget class="QPushButton">
+                                <property name="name">
+                                    <cstring>btnBack</cstring>
+                                </property>
+                                <property name="sizePolicy">
+                                    <sizepolicy>
+                                        <hsizetype>1</hsizetype>
+                                        <vsizetype>0</vsizetype>
+                                        <horstretch>0</horstretch>
+                                        <verstretch>0</verstretch>
+                                    </sizepolicy>
+                                </property>
+                                <property name="text">
+                                    <string>&amp;Back</string>
+                                </property>
+                                <property name="toolTip" stdset="0">
+                                    <string>go one step back</string>
+                                </property>
+                            </widget>
+                            <widget class="QLabel">
+                                <property name="name">
+                                    <cstring>infoPath</cstring>
+                                </property>
+                                <property name="sizePolicy">
+                                    <sizepolicy>
+                                        <hsizetype>3</hsizetype>
+                                        <vsizetype>5</vsizetype>
+                                        <horstretch>0</horstretch>
+                                        <verstretch>0</verstretch>
+                                    </sizepolicy>
+                                </property>
+                                <property name="text">
+                                    <string>/</string>
+                                </property>
+                                <property name="toolTip" stdset="0">
+                                    <string>current path</string>
+                                </property>
+                            </widget>
+                        </hbox>
+                    </widget>
+                    <widget class="QListBox">
+                        <property name="name">
+                            <cstring>infoList</cstring>
+                        </property>
+                        <property name="toolTip" stdset="0">
+                            <string>double click to open</string>
+                        </property>
+                    </widget>
+                </vbox>
+            </widget>
+            <widget class="QLayoutWidget">
+                <property name="name">
+                    <cstring>Layout3</cstring>
+                </property>
+                <vbox>
+                    <property name="name">
+                        <cstring>unnamed</cstring>
+                    </property>
+                    <property name="margin">
+                        <number>0</number>
+                    </property>
+                    <property name="spacing">
+                        <number>6</number>
+                    </property>
+                    <widget class="QLabel">
+                        <property name="name">
+                            <cstring>TextLabel2</cstring>
+                        </property>
+                        <property name="text">
+                            <string>Data:</string>
+                        </property>
+                    </widget>
+                    <widget class="QTextEdit">
+                        <property name="name">
+                            <cstring>infoText</cstring>
+                        </property>
+                        <property name="readOnly">
+                            <bool>true</bool>
+                        </property>
+                    </widget>
+                </vbox>
+            </widget>
+        </widget>
+        <widget class="QLayoutWidget">
+            <property name="name">
+                <cstring>Layout12</cstring>
+            </property>
+            <hbox>
+                <property name="name">
+                    <cstring>unnamed</cstring>
+                </property>
+                <property name="margin">
+                    <number>0</number>
+                </property>
+                <property name="spacing">
+                    <number>6</number>
+                </property>
+                <spacer>
+                    <property name="name" stdset="0">
+                        <cstring>Spacer10</cstring>
+                    </property>
+                    <property name="orientation">
+                        <enum>Horizontal</enum>
+                    </property>
+                    <property name="sizeType">
+                        <enum>Expanding</enum>
+                    </property>
+                    <property name="sizeHint">
+                        <size>
+                            <width>20</width>
+                            <height>20</height>
+                        </size>
+                    </property>
+                </spacer>
+                <widget class="QPushButton">
+                    <property name="name">
+                        <cstring>btnQuit</cstring>
+                    </property>
+                    <property name="sizePolicy">
+                        <sizepolicy>
+                            <hsizetype>3</hsizetype>
+                            <vsizetype>0</vsizetype>
+                            <horstretch>0</horstretch>
+                            <verstretch>0</verstretch>
+                        </sizepolicy>
+                    </property>
+                    <property name="text">
+                        <string>&amp;Quit</string>
+                    </property>
+                </widget>
+                <spacer>
+                    <property name="name" stdset="0">
+                        <cstring>Spacer9</cstring>
+                    </property>
+                    <property name="orientation">
+                        <enum>Horizontal</enum>
+                    </property>
+                    <property name="sizeType">
+                        <enum>Expanding</enum>
+                    </property>
+                    <property name="sizeHint">
+                        <size>
+                            <width>20</width>
+                            <height>20</height>
+                        </size>
+                    </property>
+                </spacer>
+            </hbox>
+        </widget>
+    </vbox>
+</widget>
+<layoutdefaults spacing="6" margin="11"/>
+</UI>
diff --git a/examples/network/infoprotocol/infoclient/infoclient.pro b/examples/network/infoprotocol/infoclient/infoclient.pro
new file mode 100644
index 0000000..46759dd
--- /dev/null
+++ b/examples/network/infoprotocol/infoclient/infoclient.pro
@@ -0,0 +1,11 @@
+TEMPLATE	= app
+TARGET		= infoclient
+
+CONFIG		+= qt warn_on release
+
+REQUIRES        = network full-config nocrosscompiler
+
+HEADERS		= client.h
+SOURCES		= main.cpp \
+		  client.cpp
+INTERFACES	= clientbase.ui
diff --git a/examples/network/infoprotocol/infoclient/main.cpp b/examples/network/infoprotocol/infoclient/main.cpp
new file mode 100644
index 0000000..cc4950a
--- /dev/null
+++ b/examples/network/infoprotocol/infoclient/main.cpp
@@ -0,0 +1,21 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qapplication.h>
+
+#include "client.h"
+
+int main( int argc, char** argv )
+{
+    QApplication app( argc, argv );
+    ClientInfo info;
+    app.setMainWidget( &info );
+    info.show();
+    return app.exec();
+}
diff --git a/examples/network/infoprotocol/infoserver/infodata.cpp b/examples/network/infoprotocol/infoserver/infodata.cpp
new file mode 100644
index 0000000..597f8a3
--- /dev/null
+++ b/examples/network/infoprotocol/infoserver/infodata.cpp
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "infodata.h"
+
+
+// we hard code all nodes and data in InfoData class
+InfoData::InfoData() :
+    nodes( 17, TRUE ), data( 17, TRUE )
+{
+    nodes.setAutoDelete(TRUE);
+    data.setAutoDelete(TRUE);
+    QStringList *item;
+
+    nodes.insert( "/", item = new QStringList( ) );
+    (*item) << "D network";
+    nodes.insert( "/network/", item = new QStringList() );
+    (*item) << "D workstations" << "D printers" << "D fax";
+    nodes.insert( "/network/workstations/", item = new QStringList() );
+    (*item) << "D nibble" << "D douglas";
+    nodes.insert( "/network/workstations/nibble/", item = new QStringList() );
+    (*item) << "F os" << "F cpu" << "F memory";
+    nodes.insert( "/network/workstations/douglas/", item = new QStringList() );
+    (*item) << "F os" << "F cpu" << "F memory";
+    nodes.insert( "/network/printers/", item = new QStringList() );
+    (*item) << "D overbitt" << "D kroksleiven";
+    nodes.insert( "/network/printers/overbitt/", item = new QStringList() );
+    (*item) << "D jobs" << "F type";
+    nodes.insert( "/network/printers/overbitt/jobs/", item = new QStringList() );
+    (*item) << "F job1" << "F job2";
+    nodes.insert( "/network/printers/kroksleiven/", item = new QStringList() );
+    (*item) << "D jobs" << "F type";
+    nodes.insert( "/network/printers/kroksleiven/jobs/", item = new QStringList() );
+    nodes.insert( "/network/fax/", item = new QStringList() );
+    (*item) << "F last_number";
+
+    data.insert( "/network/workstations/nibble/os", new QString( "Linux" ) );
+    data.insert( "/network/workstations/nibble/cpu", new QString( "AMD Athlon 1000" ) );
+    data.insert( "/network/workstations/nibble/memory", new QString( "256 MB" ) );
+    data.insert( "/network/workstations/douglas/os", new QString( "Windows 2000" ) );
+    data.insert( "/network/workstations/douglas/cpu", new QString( "2 x Intel Pentium III 800" ) );
+    data.insert( "/network/workstations/douglas/memory", new QString( "256 MB" ) );
+    data.insert( "/network/printers/overbitt/type", new QString( "Lexmark Optra S 1255 PS" ) );
+    data.insert( "/network/printers/overbitt/jobs/job1", 
+                 new QString( "Qt manual\n" "A4 size\n" "3000 pages" ) );
+    data.insert( "/network/printers/overbitt/jobs/job2", 
+		 new QString( "Monthly report\n" "Letter size\n" "24 pages\n" "8 copies" ) );
+    data.insert( "/network/printers/kroksleiven/type", new QString( "HP C LaserJet 4500-PS" ) );
+    data.insert( "/network/fax/last_number", new QString( "22 22 22 22" ) );
+}
+
+QStringList InfoData::list( QString path, bool *found ) const
+{
+    if ( !path.endsWith( "/" ) )
+	path += "/";
+    if ( !path.startsWith( "/" ) )
+	path = "/" + path;
+    QStringList *list = nodes[ path ];
+    if ( list ) {
+	*found = TRUE;
+	return *list;
+    } else {
+	*found = FALSE;
+	QStringList empty;
+	return empty;
+    }
+}
+
+QString InfoData::get( QString path, bool *found ) const
+{
+    if ( !path.startsWith( "/" ) )
+	path = "/" + path;
+    QString *file = data[ path ];
+    if ( file ) {
+	*found = TRUE;
+	return *file;
+    } else {
+	*found = FALSE;
+	QString empty;
+	return empty;
+    }
+}
diff --git a/examples/network/infoprotocol/infoserver/infodata.h b/examples/network/infoprotocol/infoserver/infodata.h
new file mode 100644
index 0000000..0189332
--- /dev/null
+++ b/examples/network/infoprotocol/infoserver/infodata.h
@@ -0,0 +1,31 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#ifndef INFODATA_H
+#define INFODATA_H
+
+#include <qdict.h>
+#include <qstringlist.h>
+
+
+// The InfoData class manages data, organized in tree structure.
+class InfoData
+{
+public:
+    InfoData();
+    QStringList list( QString path, bool *found ) const;
+    QString get( QString path, bool *found ) const;
+
+private:
+    QDict< QStringList > nodes;
+    QDict< QString > data;
+};
+
+#endif // INFODATA_H
+
diff --git a/examples/network/infoprotocol/infoserver/infoserver.pro b/examples/network/infoprotocol/infoserver/infoserver.pro
new file mode 100644
index 0000000..3d79aef
--- /dev/null
+++ b/examples/network/infoprotocol/infoserver/infoserver.pro
@@ -0,0 +1,13 @@
+TEMPLATE	= app
+TARGET		= infoserver
+
+CONFIG		+= qt warn_on release
+
+REQUIRES        = network full-config nocrosscompiler
+
+HEADERS		= server.h \
+		  infodata.h
+SOURCES		= main.cpp \
+		  server.cpp \
+		  infodata.cpp
+INTERFACES	= serverbase.ui
diff --git a/examples/network/infoprotocol/infoserver/main.cpp b/examples/network/infoprotocol/infoserver/main.cpp
new file mode 100644
index 0000000..fd0e8e3
--- /dev/null
+++ b/examples/network/infoprotocol/infoserver/main.cpp
@@ -0,0 +1,22 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qapplication.h>
+
+#include "server.h"
+
+int main( int argc, char** argv )
+{
+    QApplication app( argc, argv );
+    Q_UINT16 port = ( argc > 1 ) ? QString( argv[ 1 ] ).toInt() : infoPort;
+    ServerInfo info( port, 0, "server info" );
+    app.setMainWidget( &info );
+    info.show();
+    return app.exec();
+}
diff --git a/examples/network/infoprotocol/infoserver/server.cpp b/examples/network/infoprotocol/infoserver/server.cpp
new file mode 100644
index 0000000..f3815ae
--- /dev/null
+++ b/examples/network/infoprotocol/infoserver/server.cpp
@@ -0,0 +1,99 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qtextview.h>
+#include <qpushbutton.h>
+#include <qtextstream.h>
+#include <qapplication.h>
+#include <qmessagebox.h>
+#include <stdlib.h>
+
+#include "server.h"
+
+
+
+ServerInfo::ServerInfo( Q_UINT16 port, QWidget *parent, const char *name ) :
+    ServerInfoBase( parent, name )
+{
+    SimpleServer *server = new SimpleServer( port, this, "simple server" );
+    connect( server, SIGNAL(newConnect()), SLOT(newConnect()) );
+    connect( btnQuit, SIGNAL(clicked()), qApp, SLOT(quit()) );
+}
+
+void ServerInfo::newConnect()
+{
+    infoText->append( tr( "New connection\n" ) );
+}
+
+
+SimpleServer::SimpleServer( Q_UINT16 port, QObject* parent, const char *name ) :
+    QServerSocket( port, 1, parent, name )
+{
+    if ( !ok() ) {
+	QMessageBox::critical( 0, tr( "Error" ), tr( "Failed to bind to port %1" ).arg( port ) );
+	exit(1);
+    }
+}
+
+void SimpleServer::newConnection( int socket )
+{
+    (void)new ClientSocket( socket, &info, this, "client socket" );
+    emit newConnect();
+}
+
+
+ClientSocket::ClientSocket( int sock, InfoData *i, QObject *parent, const char *name ) :
+    QSocket( parent, name ), info( i )
+{
+    connect( this, SIGNAL(readyRead()), SLOT(readClient()) );
+    connect( this, SIGNAL(connectionClosed()), SLOT(connectionClosed()) );
+    setSocket( sock );
+}
+
+void ClientSocket::readClient()
+{
+    QTextStream stream( this );
+    QStringList answer;
+    while ( canReadLine() ) {
+	stream << processCommand( stream.readLine() );
+    }
+}
+
+QString ClientSocket::processCommand( const QString& command )
+{
+    QString answer;
+    QString com = command.simplifyWhiteSpace ();
+    if ( com.startsWith( "LIST" ) ) {
+	bool ok;
+	QStringList nodes = info->list( com.mid( 5 ), &ok );
+	if ( ok ) {
+	    for ( QStringList::Iterator it = nodes.begin(); it != nodes.end(); ++it ) 
+		answer += "212+" + *it + "\r\n";
+	    answer += "212 \r\n";
+	} else 
+	    answer += "550 Invalid path\r\n";	
+    } else if ( com.startsWith( "GET " ) ) {
+	bool ok;
+	QStringList data = QStringList::split( '\n', info->get( com.mid( 4 ), &ok ), TRUE );
+	if ( ok ) {
+	    for ( QStringList::Iterator it = data.begin(); it != data.end(); ++it ) 
+		answer += "213+" + *it + "\r\n";
+	    answer += "213 \r\n";
+	} else 
+	    answer += "550 Info not found\r\n";	
+    } else 
+	answer += "500 Syntax error\r\n";	
+
+    return answer;
+}
+
+void ClientSocket::connectionClosed()
+{
+    delete this;
+}
diff --git a/examples/network/infoprotocol/infoserver/server.h b/examples/network/infoprotocol/infoserver/server.h
new file mode 100644
index 0000000..fa07b93
--- /dev/null
+++ b/examples/network/infoprotocol/infoserver/server.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#ifndef SERVER_H
+#define SERVER_H
+
+#include <qsocket.h>
+#include <qserversocket.h>
+
+#include "infodata.h"
+#include "serverbase.h"
+
+static const Q_UINT16 infoPort = 42417;
+
+
+/*
+  The ServerInfo class provides a small GUI for the server. It also creates the
+  SimpleServer and as a result the server.
+*/
+class ServerInfo : public ServerInfoBase
+{
+    Q_OBJECT
+public:
+    ServerInfo( Q_UINT16 port = infoPort, QWidget *parent = 0, const char *name = 0 );
+
+private slots:
+    void newConnect();
+};
+
+
+class SimpleServer : public QServerSocket
+{
+    Q_OBJECT
+public:
+    SimpleServer( Q_UINT16 port = infoPort, QObject* parent = 0, const char *name = 0 );
+    void newConnection( int socket );
+
+signals:
+    void newConnect();
+
+private:
+    InfoData info;
+};
+
+
+class ClientSocket : public QSocket
+{
+    Q_OBJECT
+public:
+    ClientSocket( int sock, InfoData *i, QObject *parent = 0, const char *name = 0 );
+
+private slots:
+    void readClient();
+    void connectionClosed();
+
+private:
+    QString processCommand( const QString& command );
+    InfoData *info;
+};
+
+
+#endif //SERVER_H
+
diff --git a/examples/network/infoprotocol/infoserver/serverbase.ui b/examples/network/infoprotocol/infoserver/serverbase.ui
new file mode 100644
index 0000000..12998da
--- /dev/null
+++ b/examples/network/infoprotocol/infoserver/serverbase.ui
@@ -0,0 +1,117 @@
+<!DOCTYPE UI><UI version="3.0" stdsetdef="1">
+<class>ServerInfoBase</class>
+<widget class="QWidget">
+    <property name="name">
+        <cstring>ServerInfoBase</cstring>
+    </property>
+    <property name="geometry">
+        <rect>
+            <x>0</x>
+            <y>0</y>
+            <width>272</width>
+            <height>282</height>
+        </rect>
+    </property>
+    <property name="caption">
+        <string>Info Server</string>
+    </property>
+    <vbox>
+        <property name="name">
+            <cstring>unnamed</cstring>
+        </property>
+        <property name="margin">
+            <number>11</number>
+        </property>
+        <property name="spacing">
+            <number>6</number>
+        </property>
+        <widget class="QLabel">
+            <property name="name">
+                <cstring>TextLabel1</cstring>
+            </property>
+            <property name="text">
+                <string>This is a small Information Server.
+Accepting client requests...</string>
+            </property>
+            <property name="alignment">
+                <set>AlignCenter</set>
+            </property>
+        </widget>
+        <widget class="QTextEdit">
+            <property name="name">
+                <cstring>infoText</cstring>
+            </property>
+            <property name="readOnly">
+                <bool>true</bool>
+            </property>
+        </widget>
+        <widget class="QLayoutWidget">
+            <property name="name">
+                <cstring>Layout1</cstring>
+            </property>
+            <hbox>
+                <property name="name">
+                    <cstring>unnamed</cstring>
+                </property>
+                <property name="margin">
+                    <number>0</number>
+                </property>
+                <property name="spacing">
+                    <number>6</number>
+                </property>
+                <spacer>
+                    <property name="name" stdset="0">
+                        <cstring>Spacer2</cstring>
+                    </property>
+                    <property name="orientation">
+                        <enum>Horizontal</enum>
+                    </property>
+                    <property name="sizeType">
+                        <enum>Expanding</enum>
+                    </property>
+                    <property name="sizeHint">
+                        <size>
+                            <width>20</width>
+                            <height>20</height>
+                        </size>
+                    </property>
+                </spacer>
+                <widget class="QPushButton">
+                    <property name="name">
+                        <cstring>btnQuit</cstring>
+                    </property>
+                    <property name="sizePolicy">
+                        <sizepolicy>
+                            <hsizetype>3</hsizetype>
+                            <vsizetype>0</vsizetype>
+                            <horstretch>0</horstretch>
+                            <verstretch>0</verstretch>
+                        </sizepolicy>
+                    </property>
+                    <property name="text">
+                        <string>&amp;Quit</string>
+                    </property>
+                </widget>
+                <spacer>
+                    <property name="name" stdset="0">
+                        <cstring>Spacer1</cstring>
+                    </property>
+                    <property name="orientation">
+                        <enum>Horizontal</enum>
+                    </property>
+                    <property name="sizeType">
+                        <enum>Expanding</enum>
+                    </property>
+                    <property name="sizeHint">
+                        <size>
+                            <width>20</width>
+                            <height>20</height>
+                        </size>
+                    </property>
+                </spacer>
+            </hbox>
+        </widget>
+    </vbox>
+</widget>
+<layoutdefaults spacing="6" margin="11"/>
+</UI>
diff --git a/examples/network/infoprotocol/infourlclient/client.cpp b/examples/network/infoprotocol/infourlclient/client.cpp
new file mode 100644
index 0000000..712090f
--- /dev/null
+++ b/examples/network/infoprotocol/infourlclient/client.cpp
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qapplication.h>
+#include <qtextedit.h>
+#include <qpushbutton.h>
+#include <qfiledialog.h>
+
+#include "qip.h"
+#include "client.h"
+
+
+
+
+ClientInfo::ClientInfo( QWidget *parent, const char *name ) :
+    ClientInfoBase( parent, name )
+{
+    connect( btnOpen, SIGNAL(clicked()), SLOT(downloadFile()) );
+    connect( btnQuit, SIGNAL(clicked()), qApp, SLOT(quit()) );
+    connect( &op, SIGNAL( data( const QByteArray &, QNetworkOperation * ) ),
+	     this, SLOT( newData( const QByteArray & ) ) );
+}
+
+void ClientInfo::downloadFile()
+{
+    // under Windows you must not use the native file dialog
+    QString file = getOpenFileName();
+    if ( !file.isEmpty() ) {
+	infoText->clear();
+	// download the data
+	op = file;
+	op.get();
+    }
+}
+
+QString ClientInfo::getOpenFileName()
+{
+    static QString workingDirectory( "qip://localhost/" );
+
+    QFileDialog dlg( workingDirectory, QString::null, 0, 0, TRUE );
+    dlg.setCaption( QFileDialog::tr( "Open" ) );
+    dlg.setMode( QFileDialog::ExistingFile );
+    QString result;
+    if ( dlg.exec() == QDialog::Accepted ) {
+	result = dlg.selectedFile();
+	workingDirectory = dlg.url();
+    }
+    return result;
+}
+
+void ClientInfo::newData( const QByteArray &ba )
+{
+    infoText->append( QString::fromUtf8( ba ) );
+}
diff --git a/examples/network/infoprotocol/infourlclient/client.h b/examples/network/infoprotocol/infourlclient/client.h
new file mode 100644
index 0000000..ca8340b
--- /dev/null
+++ b/examples/network/infoprotocol/infourlclient/client.h
@@ -0,0 +1,35 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#ifndef CLIENT_H
+#define CLIENT_H
+
+#include <qurloperator.h>
+
+#include "clientbase.h"
+
+
+class ClientInfo : public ClientInfoBase
+{
+    Q_OBJECT
+
+public:
+    ClientInfo( QWidget *parent = 0, const char *name = 0 );
+
+private slots:
+    void downloadFile();
+    void newData( const QByteArray &ba );
+
+private:
+    QUrlOperator op;
+    QString getOpenFileName();
+};
+
+#endif // CLIENT_H
+
diff --git a/examples/network/infoprotocol/infourlclient/clientbase.ui b/examples/network/infoprotocol/infourlclient/clientbase.ui
new file mode 100644
index 0000000..e18b9a3
--- /dev/null
+++ b/examples/network/infoprotocol/infourlclient/clientbase.ui
@@ -0,0 +1,118 @@
+<!DOCTYPE UI><UI version="3.0" stdsetdef="1">
+<class>ClientInfoBase</class>
+<widget class="QWidget">
+    <property name="name">
+        <cstring>ClientInfoBase</cstring>
+    </property>
+    <property name="geometry">
+        <rect>
+            <x>0</x>
+            <y>0</y>
+            <width>325</width>
+            <height>279</height>
+        </rect>
+    </property>
+    <property name="caption">
+        <string>Info Client Protocol</string>
+    </property>
+    <vbox>
+        <property name="name">
+            <cstring>unnamed</cstring>
+        </property>
+        <property name="margin">
+            <number>11</number>
+        </property>
+        <property name="spacing">
+            <number>6</number>
+        </property>
+        <widget class="QLayoutWidget">
+            <property name="name">
+                <cstring>Layout5</cstring>
+            </property>
+            <hbox>
+                <property name="name">
+                    <cstring>unnamed</cstring>
+                </property>
+                <property name="margin">
+                    <number>0</number>
+                </property>
+                <property name="spacing">
+                    <number>6</number>
+                </property>
+                <widget class="QPushButton">
+                    <property name="name">
+                        <cstring>btnOpen</cstring>
+                    </property>
+                    <property name="sizePolicy">
+                        <sizepolicy>
+                            <hsizetype>3</hsizetype>
+                            <vsizetype>0</vsizetype>
+                            <horstretch>0</horstretch>
+                            <verstretch>0</verstretch>
+                        </sizepolicy>
+                    </property>
+                    <property name="text">
+                        <string>&amp;Open</string>
+                    </property>
+                    <property name="default">
+                        <bool>true</bool>
+                    </property>
+                    <property name="toolTip" stdset="0">
+                        <string>open data</string>
+                    </property>
+                </widget>
+                <spacer>
+                    <property name="name" stdset="0">
+                        <cstring>Spacer4</cstring>
+                    </property>
+                    <property name="orientation">
+                        <enum>Horizontal</enum>
+                    </property>
+                    <property name="sizeType">
+                        <enum>Expanding</enum>
+                    </property>
+                    <property name="sizeHint">
+                        <size>
+                            <width>20</width>
+                            <height>20</height>
+                        </size>
+                    </property>
+                </spacer>
+                <widget class="QPushButton">
+                    <property name="name">
+                        <cstring>btnQuit</cstring>
+                    </property>
+                    <property name="sizePolicy">
+                        <sizepolicy>
+                            <hsizetype>3</hsizetype>
+                            <vsizetype>0</vsizetype>
+                            <horstretch>0</horstretch>
+                            <verstretch>0</verstretch>
+                        </sizepolicy>
+                    </property>
+                    <property name="text">
+                        <string>&amp;Quit</string>
+                    </property>
+                </widget>
+            </hbox>
+        </widget>
+        <widget class="QLabel">
+            <property name="name">
+                <cstring>TextLabel2</cstring>
+            </property>
+            <property name="text">
+                <string>Data:</string>
+            </property>
+        </widget>
+        <widget class="QTextEdit">
+            <property name="name">
+                <cstring>infoText</cstring>
+            </property>
+            <property name="readOnly">
+                <bool>true</bool>
+            </property>
+        </widget>
+    </vbox>
+</widget>
+<layoutdefaults spacing="6" margin="11"/>
+</UI>
diff --git a/examples/network/infoprotocol/infourlclient/infourlclient.pro b/examples/network/infoprotocol/infourlclient/infourlclient.pro
new file mode 100644
index 0000000..219083d
--- /dev/null
+++ b/examples/network/infoprotocol/infourlclient/infourlclient.pro
@@ -0,0 +1,13 @@
+TEMPLATE	= app
+TARGET		= infourlclient
+
+CONFIG		+= qt warn_on release
+
+REQUIRES        = network full-config nocrosscompiler
+
+HEADERS		= client.h \
+		  qip.h
+SOURCES		= main.cpp \
+		  client.cpp \
+		  qip.cpp
+INTERFACES	= clientbase.ui
diff --git a/examples/network/infoprotocol/infourlclient/main.cpp b/examples/network/infoprotocol/infourlclient/main.cpp
new file mode 100644
index 0000000..677f8a1
--- /dev/null
+++ b/examples/network/infoprotocol/infourlclient/main.cpp
@@ -0,0 +1,23 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qapplication.h>
+
+#include "qip.h"
+#include "client.h"
+
+int main( int argc, char** argv )
+{
+    QApplication app( argc, argv );
+    QNetworkProtocol::registerNetworkProtocol( "qip", new QNetworkProtocolFactory< Qip > );
+    ClientInfo info;
+    app.setMainWidget( &info );
+    info.show();
+    return app.exec();
+}
diff --git a/examples/network/infoprotocol/infourlclient/qip.cpp b/examples/network/infoprotocol/infourlclient/qip.cpp
new file mode 100644
index 0000000..ef71ea3
--- /dev/null
+++ b/examples/network/infoprotocol/infourlclient/qip.cpp
@@ -0,0 +1,132 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qsocket.h>
+#include <qurlinfo.h>
+#include <qurloperator.h>
+#include <qtextstream.h>
+
+#include "qip.h"
+
+
+Qip::Qip()
+{
+    state = Start;
+    socket = new QSocket( this );
+    connect( socket, SIGNAL(connected()), SLOT(socketConnected()) );
+    connect( socket, SIGNAL(connectionClosed()), SLOT(socketConnectionClosed()) );
+    connect( socket, SIGNAL(readyRead()), SLOT(socketReadyRead()) );
+    connect( socket, SIGNAL(error(int)), SLOT(socketError(int)) );
+}
+
+int Qip::supportedOperations() const
+{
+    return OpListChildren | OpGet;
+}
+
+bool Qip::checkConnection( QNetworkOperation * )
+{
+    if ( socket->isOpen() )
+	return TRUE;
+
+    // don't call connectToHost() if we are already trying to connect
+    if ( socket->state() == QSocket::Connecting )
+	return FALSE;
+
+    socket->connectToHost( url()->host(), url()->port() != -1 ? url()->port() : infoPort );
+    return FALSE;
+}
+
+void Qip::operationListChildren( QNetworkOperation * )
+{
+    QTextStream os(socket);
+    os << "LIST " + url()->path() + "\r\n";
+    operationInProgress()->setState( StInProgress );
+}
+
+void Qip::operationGet( QNetworkOperation * )
+{
+    QTextStream os(socket);
+    os << "GET " + url()->path() + "\r\n";
+    operationInProgress()->setState( StInProgress );
+}
+
+void Qip::socketConnected()
+{
+    if ( url() )
+	emit connectionStateChanged( ConConnected, tr( "Connected to host %1" ).arg( url()->host() ) );
+    else
+	emit connectionStateChanged( ConConnected, tr ("Connected to host" ) );
+}
+
+void Qip::socketConnectionClosed()
+{
+    if ( url() )
+	emit connectionStateChanged( ConClosed, tr( "Connection to %1 closed" ).arg( url()->host() ) );
+    else
+	emit connectionStateChanged( ConClosed, tr ("Connection closed" ) );
+}
+
+void Qip::socketError( int code )
+{
+    if ( code == QSocket::ErrHostNotFound ||
+	 code == QSocket::ErrConnectionRefused ) {
+	error( ErrHostNotFound, tr( "Host not found or couldn't connect to: %1\n" ).arg( url()->host() ) );
+    } else
+	error( ErrUnsupported, tr( "Error" ) );
+}
+
+void Qip::socketReadyRead()
+{
+    // read from the server
+    QTextStream stream( socket );
+    QString line;
+    while ( socket->canReadLine() ) {
+	line = stream.readLine();
+	if ( line.startsWith( "500" ) ) {
+	    error( ErrValid, line.mid( 4 ) ); 
+	} else if ( line.startsWith( "550" ) ) {
+	    error( ErrFileNotExisting, line.mid( 4 ) ); 
+	} else if ( line.startsWith( "212+" ) ) {
+	    if ( state != List ) {
+		state = List;
+	        emit start( operationInProgress() );
+	    }
+	    QUrlInfo inf;
+	    inf.setName( line.mid( 6 ) + QString( ( line[ 4 ] == 'D' ) ? "/" : "" ) );
+	    inf.setDir( line[ 4 ] == 'D' );
+	    inf.setSymLink( FALSE );
+	    inf.setFile( line[ 4 ] == 'F' );
+	    inf.setWritable( FALSE );
+	    inf.setReadable( TRUE );
+	    emit newChild( inf, operationInProgress() );
+	} else if ( line.startsWith( "213+" ) ) {
+	    state = Data;
+	    emit data( line.mid( 4 ).utf8(), operationInProgress() );
+	}
+	if( line[3] == ' ' && state != Start) {
+	    state = Start;
+	    operationInProgress()->setState( StDone );
+	    emit finished( operationInProgress() );
+	}
+    }
+}
+
+void Qip::error( int code, const QString& msg )
+{
+    if ( operationInProgress() ) {
+	operationInProgress()->setState( StFailed );
+	operationInProgress()->setErrorCode( code );
+	operationInProgress()->setProtocolDetail( msg );
+	clearOperationQueue();
+	emit finished( operationInProgress() );
+    }
+    state = Start;
+}
+
diff --git a/examples/network/infoprotocol/infourlclient/qip.h b/examples/network/infoprotocol/infourlclient/qip.h
new file mode 100644
index 0000000..339e46b
--- /dev/null
+++ b/examples/network/infoprotocol/infourlclient/qip.h
@@ -0,0 +1,48 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#ifndef QIP_H
+#define QIP_H
+
+#include <qnetworkprotocol.h>
+
+class QSocket;
+
+static const Q_UINT16 infoPort = 42417;
+
+
+class Qip : public QNetworkProtocol
+{
+    Q_OBJECT
+
+public:
+    Qip();
+    virtual int supportedOperations() const;
+
+protected:
+    virtual void operationListChildren( QNetworkOperation *op ); 
+    virtual void operationGet( QNetworkOperation *op );
+    virtual bool checkConnection( QNetworkOperation *op );
+
+private slots:
+    void socketConnected();
+    void socketReadyRead();
+    void socketConnectionClosed();
+    void socketError( int code );
+
+private:
+    QSocket *socket;
+    enum State { Start, List, Data } state;
+    void error( int code, const QString& msg );
+};
+
+
+
+#endif // QIP_H
+