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184 lines
8.0 KiB
184 lines
8.0 KiB
13 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/network/archivesearch/archivesearch.doc:5 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>A qt-interest mail archive search</title>
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<style type="text/css"><!--
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fn { margin-left: 1cm; text-indent: -1cm; }
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a:link { color: #004faf; text-decoration: none }
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a:visited { color: #672967; text-decoration: none }
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body { background: #ffffff; color: black; }
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--></style>
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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| <a href="classes.html">
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<font color="#004faf">All Classes</font></a>
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| <a href="mainclasses.html">
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<font color="#004faf">Main Classes</font></a>
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| <a href="annotated.html">
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<font color="#004faf">Annotated</font></a>
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| <a href="groups.html">
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<font color="#004faf">Grouped Classes</font></a>
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| <a href="functions.html">
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<font color="#004faf">Functions</font></a>
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</td>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>A qt-interest mail archive search</h1>
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<p>
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<p> This example does a search on the qt-interest mailinglist archives. It uses
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<a href="qhttp.html">TQHttp</a> to issue the search command and to fetch the results. The GUI parts
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were done using <a href="designer-manual.html">TQt Designer</a>.
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<p> <hr>
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<p> The implementation of the HTTP requests (archivedialog.ui.h):
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<p> <pre>/****************************************************************************
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** $Id: qt/archivedialog.ui.h 3.3.8 edited Jan 29 15:54 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for TQt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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/****************************************************************************
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** ui.h extension file, included from the uic-generated form implementation.
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**
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** If you wish to add, delete or rename functions or slots use
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** TQt Designer which will update this file, preserving your code. Create an
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** init() function in place of a constructor, and a destroy() function in
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** place of a destructor.
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*****************************************************************************/
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void ArchiveDialog::init()
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{
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connect(&articleSearcher, SIGNAL(done(bool)), this, SLOT(searchDone(bool)));
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connect(&articleFetcher, SIGNAL(done(bool)), this, SLOT(fetchDone(bool)));
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connect(myListView, SIGNAL(selectionChanged(TQListViewItem*)), this, SLOT(fetch(TQListViewItem*)));
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connect(myLineEdit, SIGNAL(returnPressed()), this, SLOT(search()));
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connect(myListView, SIGNAL(returnPressed(TQListViewItem*)), this, SLOT(fetch(TQListViewItem*)));
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connect(myPushButton, SIGNAL(clicked()), this, SLOT(close()));
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}
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void ArchiveDialog::fetch( <a href="qlistviewitem.html">TQListViewItem</a> *it )
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{
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<a name="x477"></a> <a href="qurl.html">TQUrl</a> u(it-><a href="qlistviewitem.html#text">text</a>(1));
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<a name="x485"></a> articleFetcher.setHost(u.<a href="qurl.html#host">host</a>());
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articleFetcher.get(it-><a href="qlistviewitem.html#text">text</a>(1));
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}
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void ArchiveDialog::fetchDone( bool error )
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{
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if (error) {
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<a name="x478"></a> TQMessageBox::<a href="qmessagebox.html#critical">critical</a>(this, "Error fetching",
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"An error occurred when fetching this document: "
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+ articleFetcher.errorString(),
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TQMessageBox::Ok, TQMessageBox::NoButton);
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} else {
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myTextBrowser->setText(articleFetcher.readAll());
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}
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}
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void ArchiveDialog::search()
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{
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if (articleSearcher.state() == TQHttp::HostLookup
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|| articleSearcher.state() == TQHttp::Connecting
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|| articleSearcher.state() == TQHttp::Sending
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|| articleSearcher.state() == TQHttp::Reading) {
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articleSearcher.abort();
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}
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if (myLineEdit->text() == "") {
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TQMessageBox::<a href="qmessagebox.html#critical">critical</a>(this, "Empty query",
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"Please type a search string.",
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TQMessageBox::Ok, TQMessageBox::NoButton);
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} else {
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<a name="x474"></a> TQApplication::<a href="qapplication.html#setOverrideCursor">setOverrideCursor</a>(TQCursor(TQt::WaitCursor));
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articleSearcher.setHost("lists.trolltech.com");
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<a href="qhttprequestheader.html">TQHttpRequestHeader</a> header("POST", "/qt-interest/search.php");
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<a name="x476"></a> header.<a href="qhttpheader.html#setValue">setValue</a>("Host", "lists.trolltech.com");
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<a name="x475"></a> header.<a href="qhttpheader.html#setContentType">setContentType</a>("application/x-www-form-urlencoded");
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<a href="qstring.html">TQString</a> encodedTopic = myLineEdit->text();
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<a name="x484"></a> TQUrl::<a href="qurl.html#encode">encode</a>(encodedTopic);
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<a href="qstring.html">TQString</a> searchString = "qt-interest=on&search=" + encodedTopic;
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<a name="x483"></a> articleSearcher.request(header, searchString.<a href="qstring.html#utf8">utf8</a>());
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}
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}
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void ArchiveDialog::searchDone( bool error )
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{
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if (error) {
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TQMessageBox::<a href="qmessagebox.html#critical">critical</a>(this, "Error searching",
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"An error occurred when searching: "
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+ articleSearcher.errorString(),
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TQMessageBox::Ok, TQMessageBox::NoButton);
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} else {
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<a href="qstring.html">TQString</a> result(articleSearcher.readAll());
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<a href="qregexp.html">TQRegExp</a> rx("<a href=\"(http://lists\\.trolltech\\.com/qt-interest/.*)\">(.*)</a>");
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<a name="x482"></a> rx.<a href="qregexp.html#setMinimal">setMinimal</a>(TRUE);
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int pos = 0;
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while (pos >= 0) {
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<a name="x481"></a> pos = rx.<a href="qregexp.html#search">search</a>(result, pos);
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if (pos > -1) {
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<a name="x480"></a> pos += rx.<a href="qregexp.html#matchedLength">matchedLength</a>();
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<a name="x479"></a> new <a href="qlistviewitem.html">TQListViewItem</a>(myListView, rx.<a href="qregexp.html#cap">cap</a>(2), rx.<a href="qregexp.html#cap">cap</a>(1));
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}
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}
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}
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<a name="x473"></a> TQApplication::<a href="qapplication.html#restoreOverrideCursor">restoreOverrideCursor</a>();
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}
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</pre>
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<p> <hr>
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<p> Main (main.cpp):
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<p> <pre>/****************************************************************************
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** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for TQt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include "archivedialog.h"
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#include <<a href="qapplication-h.html">qapplication.h</a>>
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int main(int argc, char **argv)
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{
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<a href="qapplication.html">TQApplication</a> a( argc, argv );
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ArchiveDialog ad;
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ad.show();
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<a name="x489"></a><a name="x487"></a> TQObject::<a href="qobject.html#connect">connect</a>( &a, SIGNAL(<a href="qapplication.html#lastWindowClosed">lastWindowClosed</a>()),
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<a name="x488"></a> &a, SLOT(<a href="qapplication.html#tquit">tquit</a>()) );
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<a name="x486"></a> return a.<a href="qapplication.html#exec">exec</a>();
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}
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</pre>
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<p>See also <a href="network-examples.html">Network Examples</a>.
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<!-- eof -->
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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