Add Qt3 development HEAD version

1 files changed, 90 insertions, 0 deletions

diff --git a/examples/network/networkprotocol/view.cpp b/examples/network/networkprotocol/view.cpp
new file mode 100644
index 0000000..fed5bdf
--- /dev/null
+++ b/examples/network/networkprotocol/view.cpp
@@ -0,0 +1,90 @@
+/****************************************************************************
+**
+** 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 "view.h"
+
+#include <qlabel.h>
+#include <qpushbutton.h>
+#include <qmultilineedit.h>
+#include <qfiledialog.h>
+
+View::View()
+    : QVBox()
+{
+    // setup the GUI
+    setSpacing( 5 );
+    setMargin( 5 );
+
+    QLabel *l = new QLabel( this );
+    l->setAlignment( Qt::WordBreak ),
+    l->setText( tr( "The button below opens the QFileDialog and you "
+		    "can choose a file then which is downloaded and "
+		    "opened below then. You can use for that the <b>local "
+		    "filesystem</b> using the file protocol, you can download "
+		    "files from an <b>FTP</b> server using the ftp protocol and "
+		    "you can download and open <b>USENET</b> articles using the "
+		    "demo implementation of the nntp protocol of this "
+		    "example (<i>This implementation of the nntp protocol is a very "
+		    "basic and incomplete one, so you need to connect to a news server "
+		    "which allows reading without authentification</i>)\n"
+		    "To open a file from the local filesystem, enter in the "
+		    "path combobox of the file dialog a url starting with file "
+		    "(like <u>file:/usr/bin</u>), to download something from an FTP "
+		    "server, use something like <u>ftp://ftp.trolltech.com</u> as url, and "
+		    "for downloading a news article start with an url like "
+		    "<u>nntp://news.tu-graz.ac.at</u> " ) );
+    QPushButton *b = new QPushButton( tr( "Open a file..." ), this );
+    connect( b, SIGNAL( clicked() ),
+	     this, SLOT( downloadFile() ) );
+
+    fileView = new QMultiLineEdit( this );
+    fileView->setReadOnly( TRUE );
+
+    // if new data comes in, display it
+    connect( &op, SIGNAL( data( const QByteArray &, QNetworkOperation * ) ),
+	     this, SLOT( newData( const QByteArray & ) ) );
+}
+
+void View::downloadFile()
+{
+    // QString file = QFileDialog::getOpenFileName();
+    // under Windows you must not use the native file dialog
+    QString file = getOpenFileName();
+    if ( !file.isEmpty() ) {
+	// clear the view
+	fileView->clear();
+
+	// download the data
+	op = file;
+	op.get();
+    }
+}
+
+QString View::getOpenFileName()
+{
+    static QString workingDirectory = QDir::currentDirPath();
+
+    QFileDialog *dlg = new QFileDialog( 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();
+    }
+    delete dlg;
+    return result;
+}
+
+void View::newData( const QByteArray &ba )
+{
+    // append new data
+    fileView->append( ba );
+}