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qt3/doc/html/addressbook-example.html

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/addressbook/addressbook.doc:4 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Simple Addressbook</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
<a href="index.html">
<font color="#004faf">Home</font></a>
| <a href="classes.html">
<font color="#004faf">All&nbsp;Classes</font></a>
| <a href="mainclasses.html">
<font color="#004faf">Main&nbsp;Classes</font></a>
| <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
| <a href="groups.html">
<font color="#004faf">Grouped&nbsp;Classes</font></a>
| <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Simple Addressbook</h1>
<p>
This examples shows how to write a very simple, but complete application
using an addressbook as the example.
<p> <hr>
<p> Header file of the mainwindow:
<p> <pre>/****************************************************************************
** $Id: qt/mainwindow.h 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 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 AB_MAINWINDOW_H
#define AB_MAINWINDOW_H
#include &lt;<a href="qmainwindow-h.html">qmainwindow.h</a>&gt;
#include &lt;<a href="qstring-h.html">qstring.h</a>&gt;
class QToolBar;
class QPopupMenu;
class ABCentralWidget;
class ABMainWindow: public <a href="qmainwindow.html">QMainWindow</a>
{
<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
public:
ABMainWindow();
~ABMainWindow();
protected slots:
void fileNew();
void fileOpen();
void fileSave();
void fileSaveAs();
void filePrint();
void closeWindow();
protected:
void setupMenuBar();
void setupFileTools();
void setupStatusBar();
void setupCentralWidget();
<a href="qtoolbar.html">QToolBar</a> *fileTools;
<a href="qstring.html">QString</a> filename;
ABCentralWidget *view;
};
#endif
</pre>
<p> <hr>
<p> Implementation of the mainwindow:
<p> <pre>/****************************************************************************
** $Id: qt/mainwindow.cpp 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 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 "mainwindow.h"
#include "centralwidget.h"
#include &lt;<a href="qtoolbar-h.html">qtoolbar.h</a>&gt;
#include &lt;<a href="qtoolbutton-h.html">qtoolbutton.h</a>&gt;
#include &lt;<a href="qpopupmenu-h.html">qpopupmenu.h</a>&gt;
#include &lt;<a href="qmenubar-h.html">qmenubar.h</a>&gt;
#include &lt;<a href="qstatusbar-h.html">qstatusbar.h</a>&gt;
#include &lt;<a href="qapplication-h.html">qapplication.h</a>&gt;
#include &lt;<a href="qfiledialog-h.html">qfiledialog.h</a>&gt;
<a name="f263"></a>ABMainWindow::ABMainWindow()
: <a href="qmainwindow.html">QMainWindow</a>( 0, "example addressbook application" ),
filename( <a href="qstring.html#QString-null">QString::null</a> )
{
setupMenuBar();
setupFileTools();
setupStatusBar();
setupCentralWidget();
}
ABMainWindow::~ABMainWindow()
{
}
void <a name="f264"></a>ABMainWindow::setupMenuBar()
{
<a href="qpopupmenu.html">QPopupMenu</a> *file = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
<a href="qmainwindow.html#menuBar">menuBar</a>()-&gt;insertItem( "&amp;File", file );
<a name="x569"></a> file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "New", this, SLOT( fileNew() ), CTRL + Key_N );
file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( QPixmap( "fileopen.xpm" ), "Open", this, SLOT( fileOpen() ), CTRL + Key_O );
<a name="x570"></a> file-&gt;<a href="qmenudata.html#insertSeparator">insertSeparator</a>();
file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( QPixmap( "filesave.xpm" ), "Save", this, SLOT( fileSave() ), CTRL + Key_S );
file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Save As...", this, SLOT( fileSaveAs() ) );
file-&gt;<a href="qmenudata.html#insertSeparator">insertSeparator</a>();
file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( QPixmap( "fileprint.xpm" ), "Print...", this, SLOT( filePrint() ), CTRL + Key_P );
file-&gt;<a href="qmenudata.html#insertSeparator">insertSeparator</a>();
file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Close", this, SLOT( closeWindow() ), CTRL + Key_W );
file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>( "Quit", qApp, SLOT( <a href="qapplication.html#quit">quit</a>() ), CTRL + Key_Q );
}
void <a name="f265"></a>ABMainWindow::setupFileTools()
{
//fileTools = new <a href="qtoolbar.html">QToolBar</a>( this, "file operations" );
}
void <a name="f266"></a>ABMainWindow::setupStatusBar()
{
//statusBar()-&gt;message( "Ready", 2000 );
}
void <a name="f267"></a>ABMainWindow::setupCentralWidget()
{
view = new ABCentralWidget( this );
<a href="qmainwindow.html#setCentralWidget">setCentralWidget</a>( view );
}
void <a name="f268"></a>ABMainWindow::closeWindow()
{
<a href="qwidget.html#close">close</a>();
}
void <a name="f269"></a>ABMainWindow::fileNew()
{
}
void <a name="f270"></a>ABMainWindow::fileOpen()
{
<a name="x567"></a> <a href="qstring.html">QString</a> fn = QFileDialog::<a href="qfiledialog.html#getOpenFileName">getOpenFileName</a>( QString::null, QString::null, this );
<a name="x571"></a> if ( !fn.<a href="qstring.html#isEmpty">isEmpty</a>() ) {
filename = fn;
view-&gt;load( filename );
}
}
void <a name="f271"></a>ABMainWindow::fileSave()
{
if ( filename.isEmpty() ) {
fileSaveAs();
return;
}
view-&gt;save( filename );
}
void <a name="f272"></a>ABMainWindow::fileSaveAs()
{
<a name="x568"></a> <a href="qstring.html">QString</a> fn = QFileDialog::<a href="qfiledialog.html#getSaveFileName">getSaveFileName</a>( QString::null, QString::null, this );
if ( !fn.<a href="qstring.html#isEmpty">isEmpty</a>() ) {
filename = fn;
fileSave();
}
}
void <a name="f273"></a>ABMainWindow::filePrint()
{
}
</pre>
<p> <hr>
<p> Header file of the centralwidget:
<p> <pre>/****************************************************************************
** $Id: qt/centralwidget.h 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 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 AB_CENTRALWIDGET_H
#define AB_CENTRALWIDGET_H
#include &lt;<a href="qwidget-h.html">qwidget.h</a>&gt;
#include &lt;<a href="qstring-h.html">qstring.h</a>&gt;
class QTabWidget;
class QListView;
class QGridLayout;
class QLineEdit;
class QPushButton;
class QListViewItem;
class QCheckBox;
class ABCentralWidget : public <a href="qwidget.html">QWidget</a>
{
Q_OBJECT
public:
ABCentralWidget( <a href="qwidget.html">QWidget</a> *parent, const char *name = 0 );
void save( const <a href="qstring.html">QString</a> &amp;filename );
void load( const <a href="qstring.html">QString</a> &amp;filename );
protected slots:
void addEntry();
void changeEntry();
void itemSelected( <a href="qlistviewitem.html">QListViewItem</a>* );
void selectionChanged();
void toggleFirstName();
void toggleLastName();
void toggleAddress();
void toggleEMail();
void findEntries();
protected:
void setupTabWidget();
void setupListView();
<a href="qgridlayout.html">QGridLayout</a> *mainGrid;
<a href="qtabwidget.html">QTabWidget</a> *tabWidget;
<a href="qlistview.html">QListView</a> *listView;
<a href="qpushbutton.html">QPushButton</a> *add, *change, *find;
<a href="qlineedit.html">QLineEdit</a> *iFirstName, *iLastName, *iAddress, *iEMail,
*sFirstName, *sLastName, *sAddress, *sEMail;
<a href="qcheckbox.html">QCheckBox</a> *cFirstName, *cLastName, *cAddress, *cEMail;
};
#endif
</pre>
<p> <hr>
<p> Implementation of the centralwidget:
<p> <pre>/****************************************************************************
** $Id: qt/centralwidget.cpp 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 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 "centralwidget.h"
#include &lt;<a href="qtabwidget-h.html">qtabwidget.h</a>&gt;
#include &lt;<a href="qlistview-h.html">qlistview.h</a>&gt;
#include &lt;<a href="qlayout-h.html">qlayout.h</a>&gt;
#include &lt;<a href="qwidget-h.html">qwidget.h</a>&gt;
#include &lt;<a href="qlabel-h.html">qlabel.h</a>&gt;
#include &lt;<a href="qpushbutton-h.html">qpushbutton.h</a>&gt;
#include &lt;<a href="qlineedit-h.html">qlineedit.h</a>&gt;
#include &lt;<a href="qlabel-h.html">qlabel.h</a>&gt;
#include &lt;<a href="qcheckbox-h.html">qcheckbox.h</a>&gt;
#include &lt;<a href="qfile-h.html">qfile.h</a>&gt;
#include &lt;<a href="qtextstream-h.html">qtextstream.h</a>&gt;
<a name="f274"></a>ABCentralWidget::ABCentralWidget( <a href="qwidget.html">QWidget</a> *parent, const char *name )
: <a href="qwidget.html">QWidget</a>( parent, name )
{
mainGrid = new <a href="qgridlayout.html">QGridLayout</a>( this, 2, 1, 5, 5 );
setupTabWidget();
setupListView();
<a name="x579"></a> mainGrid-&gt;<a href="qgridlayout.html#setRowStretch">setRowStretch</a>( 0, 0 );
mainGrid-&gt;<a href="qgridlayout.html#setRowStretch">setRowStretch</a>( 1, 1 );
}
void <a name="f275"></a>ABCentralWidget::save( const <a href="qstring.html">QString</a> &amp;filename )
{
<a name="x590"></a> if ( !listView-&gt;<a href="qlistview.html#firstChild">firstChild</a>() )
return;
<a href="qfile.html">QFile</a> f( filename );
if ( !f.<a href="qfile.html#open">open</a>( <a href="qfile.html#open">IO_WriteOnly</a> ) )
return;
<a href="qtextstream.html">QTextStream</a> t( &amp;f );
<a name="x603"></a> t.<a href="qtextstream.html#setEncoding">setEncoding</a>(QTextStream::UnicodeUTF8);
<a href="qlistviewitemiterator.html">QListViewItemIterator</a> it( listView );
<a name="x597"></a> for ( ; it.<a href="qlistviewitemiterator.html#current">current</a>(); ++it )
for ( unsigned int i = 0; i &lt; 4; i++ )
t &lt;&lt; it.<a href="qlistviewitemiterator.html#current">current</a>()-&gt;text( i ) &lt;&lt; "\n";
f.<a href="qfile.html#close">close</a>();
}
void <a name="f276"></a>ABCentralWidget::load( const <a href="qstring.html">QString</a> &amp;filename )
{
<a name="x586"></a> listView-&gt;<a href="qlistview.html#clear">clear</a>();
<a href="qfile.html">QFile</a> f( filename );
if ( !f.<a href="qfile.html#open">open</a>( <a href="qfile.html#open">IO_ReadOnly</a> ) )
return;
<a href="qtextstream.html">QTextStream</a> t( &amp;f );
t.<a href="qtextstream.html#setEncoding">setEncoding</a>(QTextStream::UnicodeUTF8);
<a name="x601"></a> while ( !t.<a href="qtextstream.html#atEnd">atEnd</a>() ) {
<a href="qlistviewitem.html">QListViewItem</a> *item = new <a href="qlistviewitem.html">QListViewItem</a>( listView );
for ( unsigned int i = 0; i &lt; 4; i++ )
<a name="x602"></a><a name="x595"></a> item-&gt;<a href="qlistviewitem.html#setText">setText</a>( i, t.<a href="qtextstream.html#readLine">readLine</a>() );
}
f.<a href="qfile.html#close">close</a>();
}
void <a name="f277"></a>ABCentralWidget::setupTabWidget()
{
tabWidget = new <a href="qtabwidget.html">QTabWidget</a>( this );
<a href="qwidget.html">QWidget</a> *input = new <a href="qwidget.html">QWidget</a>( tabWidget );
<a href="qgridlayout.html">QGridLayout</a> *grid1 = new <a href="qgridlayout.html">QGridLayout</a>( input, 2, 5, 5, 5 );
<a href="qlabel.html">QLabel</a> *liFirstName = new <a href="qlabel.html">QLabel</a>( "First &amp;Name", input );
<a name="x604"></a><a name="x581"></a> liFirstName-&gt;<a href="qwidget.html#resize">resize</a>( liFirstName-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
<a name="x578"></a> grid1-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( liFirstName, 0, 0 );
<a href="qlabel.html">QLabel</a> *liLastName = new <a href="qlabel.html">QLabel</a>( "&amp;Last Name", input );
liLastName-&gt;<a href="qwidget.html#resize">resize</a>( liLastName-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
grid1-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( liLastName, 0, 1 );
<a href="qlabel.html">QLabel</a> *liAddress = new <a href="qlabel.html">QLabel</a>( "Add&amp;ress", input );
liAddress-&gt;<a href="qwidget.html#resize">resize</a>( liAddress-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
grid1-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( liAddress, 0, 2 );
<a href="qlabel.html">QLabel</a> *liEMail = new <a href="qlabel.html">QLabel</a>( "&amp;E-Mail", input );
liEMail-&gt;<a href="qwidget.html#resize">resize</a>( liEMail-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
grid1-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( liEMail, 0, 3 );
add = new <a href="qpushbutton.html">QPushButton</a>( "A&amp;dd", input );
<a name="x599"></a><a name="x598"></a> add-&gt;<a href="qwidget.html#resize">resize</a>( add-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
grid1-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( add, 0, 4 );
<a href="qobject.html#connect">connect</a>( add, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ), this, SLOT( addEntry() ) );
iFirstName = new <a href="qlineedit.html">QLineEdit</a>( input );
<a name="x583"></a> iFirstName-&gt;<a href="qwidget.html#resize">resize</a>( iFirstName-&gt;<a href="qlineedit.html#sizeHint">sizeHint</a>() );
grid1-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( iFirstName, 1, 0 );
<a name="x580"></a> liFirstName-&gt;<a href="qlabel.html#setBuddy">setBuddy</a>( iFirstName );
iLastName = new <a href="qlineedit.html">QLineEdit</a>( input );
iLastName-&gt;<a href="qwidget.html#resize">resize</a>( iLastName-&gt;<a href="qlineedit.html#sizeHint">sizeHint</a>() );
grid1-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( iLastName, 1, 1 );
liLastName-&gt;<a href="qlabel.html#setBuddy">setBuddy</a>( iLastName );
iAddress = new <a href="qlineedit.html">QLineEdit</a>( input );
iAddress-&gt;<a href="qwidget.html#resize">resize</a>( iAddress-&gt;<a href="qlineedit.html#sizeHint">sizeHint</a>() );
grid1-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( iAddress, 1, 2 );
liAddress-&gt;<a href="qlabel.html#setBuddy">setBuddy</a>( iAddress );
iEMail = new <a href="qlineedit.html">QLineEdit</a>( input );
iEMail-&gt;<a href="qwidget.html#resize">resize</a>( iEMail-&gt;<a href="qlineedit.html#sizeHint">sizeHint</a>() );
grid1-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( iEMail, 1, 3 );
liEMail-&gt;<a href="qlabel.html#setBuddy">setBuddy</a>( iEMail );
change = new <a href="qpushbutton.html">QPushButton</a>( "&amp;Change", input );
change-&gt;<a href="qwidget.html#resize">resize</a>( change-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
grid1-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( change, 1, 4 );
<a href="qobject.html#connect">connect</a>( change, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ), this, SLOT( changeEntry() ) );
<a name="x600"></a> tabWidget-&gt;<a href="qtabwidget.html#addTab">addTab</a>( input, "&amp;Add/Change Entry" );
// --------------------------------------
<a href="qwidget.html">QWidget</a> *search = new <a href="qwidget.html">QWidget</a>( this );
<a href="qgridlayout.html">QGridLayout</a> *grid2 = new <a href="qgridlayout.html">QGridLayout</a>( search, 2, 5, 5, 5 );
cFirstName = new <a href="qcheckbox.html">QCheckBox</a>( "First &amp;Name", search );
<a name="x575"></a> cFirstName-&gt;<a href="qwidget.html#resize">resize</a>( cFirstName-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
grid2-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( cFirstName, 0, 0 );
<a href="qobject.html#connect">connect</a>( cFirstName, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ), this, SLOT( toggleFirstName() ) );
cLastName = new <a href="qcheckbox.html">QCheckBox</a>( "&amp;Last Name", search );
cLastName-&gt;<a href="qwidget.html#resize">resize</a>( cLastName-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
grid2-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( cLastName, 0, 1 );
<a href="qobject.html#connect">connect</a>( cLastName, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ), this, SLOT( toggleLastName() ) );
cAddress = new <a href="qcheckbox.html">QCheckBox</a>( "Add&amp;ress", search );
cAddress-&gt;<a href="qwidget.html#resize">resize</a>( cAddress-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
grid2-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( cAddress, 0, 2 );
<a href="qobject.html#connect">connect</a>( cAddress, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ), this, SLOT( toggleAddress() ) );
cEMail = new <a href="qcheckbox.html">QCheckBox</a>( "&amp;E-Mail", search );
cEMail-&gt;<a href="qwidget.html#resize">resize</a>( cEMail-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
grid2-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( cEMail, 0, 3 );
<a href="qobject.html#connect">connect</a>( cEMail, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ), this, SLOT( toggleEMail() ) );
sFirstName = new <a href="qlineedit.html">QLineEdit</a>( search );
sFirstName-&gt;<a href="qwidget.html#resize">resize</a>( sFirstName-&gt;<a href="qlineedit.html#sizeHint">sizeHint</a>() );
grid2-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( sFirstName, 1, 0 );
sLastName = new <a href="qlineedit.html">QLineEdit</a>( search );
sLastName-&gt;<a href="qwidget.html#resize">resize</a>( sLastName-&gt;<a href="qlineedit.html#sizeHint">sizeHint</a>() );
grid2-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( sLastName, 1, 1 );
sAddress = new <a href="qlineedit.html">QLineEdit</a>( search );
sAddress-&gt;<a href="qwidget.html#resize">resize</a>( sAddress-&gt;<a href="qlineedit.html#sizeHint">sizeHint</a>() );
grid2-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( sAddress, 1, 2 );
sEMail = new <a href="qlineedit.html">QLineEdit</a>( search );
sEMail-&gt;<a href="qwidget.html#resize">resize</a>( sEMail-&gt;<a href="qlineedit.html#sizeHint">sizeHint</a>() );
grid2-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( sEMail, 1, 3 );
find = new <a href="qpushbutton.html">QPushButton</a>( "F&amp;ind", search );
find-&gt;<a href="qwidget.html#resize">resize</a>( find-&gt;<a href="qwidget.html#sizeHint">sizeHint</a>() );
grid2-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( find, 1, 4 );
<a href="qobject.html#connect">connect</a>( find, SIGNAL( <a href="qbutton.html#clicked">clicked</a>() ), this, SLOT( findEntries() ) );
<a name="x574"></a> cFirstName-&gt;<a href="qcheckbox.html#setChecked">setChecked</a>( TRUE );
<a name="x605"></a> sFirstName-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( TRUE );
sLastName-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( FALSE );
sAddress-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( FALSE );
sEMail-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( FALSE );
tabWidget-&gt;<a href="qtabwidget.html#addTab">addTab</a>( search, "&amp;Search" );
mainGrid-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( tabWidget, 0, 0 );
}
void <a name="f278"></a>ABCentralWidget::setupListView()
{
listView = new <a href="qlistview.html">QListView</a>( this );
<a name="x585"></a> listView-&gt;<a href="qlistview.html#addColumn">addColumn</a>( "First Name" );
listView-&gt;<a href="qlistview.html#addColumn">addColumn</a>( "Last Name" );
listView-&gt;<a href="qlistview.html#addColumn">addColumn</a>( "Address" );
listView-&gt;<a href="qlistview.html#addColumn">addColumn</a>( "E-Mail" );
<a name="x592"></a> listView-&gt;<a href="qlistview.html#setSelectionMode">setSelectionMode</a>( QListView::Single );
<a name="x588"></a> <a href="qobject.html#connect">connect</a>( listView, SIGNAL( <a href="qlistview.html#clicked">clicked</a>( <a href="qlistviewitem.html">QListViewItem</a>* ) ), this, SLOT( itemSelected( <a href="qlistviewitem.html">QListViewItem</a>* ) ) );
mainGrid-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( listView, 1, 0 );
<a name="x591"></a> listView-&gt;<a href="qlistview.html#setAllColumnsShowFocus">setAllColumnsShowFocus</a>( TRUE );
}
void <a name="f279"></a>ABCentralWidget::addEntry()
{
<a name="x584"></a> if ( !iFirstName-&gt;<a href="qlineedit.html#text">text</a>().isEmpty() || !iLastName-&gt;<a href="qlineedit.html#text">text</a>().isEmpty() ||
!iAddress-&gt;<a href="qlineedit.html#text">text</a>().isEmpty() || !iEMail-&gt;<a href="qlineedit.html#text">text</a>().isEmpty() ) {
<a href="qlistviewitem.html">QListViewItem</a> *item = new <a href="qlistviewitem.html">QListViewItem</a>( listView );
item-&gt;<a href="qlistviewitem.html#setText">setText</a>( 0, iFirstName-&gt;<a href="qlineedit.html#text">text</a>() );
item-&gt;<a href="qlistviewitem.html#setText">setText</a>( 1, iLastName-&gt;<a href="qlineedit.html#text">text</a>() );
item-&gt;<a href="qlistviewitem.html#setText">setText</a>( 2, iAddress-&gt;<a href="qlineedit.html#text">text</a>() );
item-&gt;<a href="qlistviewitem.html#setText">setText</a>( 3, iEMail-&gt;<a href="qlineedit.html#text">text</a>() );
}
<a name="x582"></a> iFirstName-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
iLastName-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
iAddress-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
iEMail-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
}
void <a name="f280"></a>ABCentralWidget::changeEntry()
{
<a name="x589"></a> <a href="qlistviewitem.html">QListViewItem</a> *item = listView-&gt;<a href="qlistview.html#currentItem">currentItem</a>();
if ( item &amp;&amp;
( !iFirstName-&gt;<a href="qlineedit.html#text">text</a>().isEmpty() || !iLastName-&gt;<a href="qlineedit.html#text">text</a>().isEmpty() ||
!iAddress-&gt;<a href="qlineedit.html#text">text</a>().isEmpty() || !iEMail-&gt;<a href="qlineedit.html#text">text</a>().isEmpty() ) ) {
item-&gt;<a href="qlistviewitem.html#setText">setText</a>( 0, iFirstName-&gt;<a href="qlineedit.html#text">text</a>() );
item-&gt;<a href="qlistviewitem.html#setText">setText</a>( 1, iLastName-&gt;<a href="qlineedit.html#text">text</a>() );
item-&gt;<a href="qlistviewitem.html#setText">setText</a>( 2, iAddress-&gt;<a href="qlineedit.html#text">text</a>() );
item-&gt;<a href="qlistviewitem.html#setText">setText</a>( 3, iEMail-&gt;<a href="qlineedit.html#text">text</a>() );
}
}
void <a name="f281"></a>ABCentralWidget::selectionChanged()
{
iFirstName-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
iLastName-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
iAddress-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
iEMail-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
}
void <a name="f282"></a>ABCentralWidget::itemSelected( <a href="qlistviewitem.html">QListViewItem</a> *item )
{
if ( !item )
return;
<a name="x594"></a> item-&gt;<a href="qlistviewitem.html#setSelected">setSelected</a>( TRUE );
<a name="x593"></a> item-&gt;<a href="qlistviewitem.html#repaint">repaint</a>();
<a name="x596"></a> iFirstName-&gt;<a href="qlineedit.html#setText">setText</a>( item-&gt;<a href="qlistviewitem.html#text">text</a>( 0 ) );
iLastName-&gt;<a href="qlineedit.html#setText">setText</a>( item-&gt;<a href="qlistviewitem.html#text">text</a>( 1 ) );
iAddress-&gt;<a href="qlineedit.html#setText">setText</a>( item-&gt;<a href="qlistviewitem.html#text">text</a>( 2 ) );
iEMail-&gt;<a href="qlineedit.html#setText">setText</a>( item-&gt;<a href="qlistviewitem.html#text">text</a>( 3 ) );
}
void <a name="f283"></a>ABCentralWidget::toggleFirstName()
{
sFirstName-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
<a name="x573"></a> if ( cFirstName-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() ) {
sFirstName-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( TRUE );
<a name="x606"></a> sFirstName-&gt;<a href="qwidget.html#setFocus">setFocus</a>();
}
else
sFirstName-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( FALSE );
}
void <a name="f284"></a>ABCentralWidget::toggleLastName()
{
sLastName-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
if ( cLastName-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() ) {
sLastName-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( TRUE );
sLastName-&gt;<a href="qwidget.html#setFocus">setFocus</a>();
}
else
sLastName-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( FALSE );
}
void <a name="f285"></a>ABCentralWidget::toggleAddress()
{
sAddress-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
if ( cAddress-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() ) {
sAddress-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( TRUE );
sAddress-&gt;<a href="qwidget.html#setFocus">setFocus</a>();
}
else
sAddress-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( FALSE );
}
void <a name="f286"></a>ABCentralWidget::toggleEMail()
{
sEMail-&gt;<a href="qlineedit.html#setText">setText</a>( "" );
if ( cEMail-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() ) {
sEMail-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( TRUE );
sEMail-&gt;<a href="qwidget.html#setFocus">setFocus</a>();
}
else
sEMail-&gt;<a href="qwidget.html#setEnabled">setEnabled</a>( FALSE );
}
void <a name="f287"></a>ABCentralWidget::findEntries()
{
if ( !cFirstName-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() &amp;&amp;
!cLastName-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() &amp;&amp;
!cAddress-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() &amp;&amp;
!cEMail-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() ) {
<a name="x587"></a> listView-&gt;<a href="qlistview.html#clearSelection">clearSelection</a>();
return;
}
<a href="qlistviewitemiterator.html">QListViewItemIterator</a> it( listView );
for ( ; it.<a href="qlistviewitemiterator.html#current">current</a>(); ++it ) {
bool select = TRUE;
if ( cFirstName-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() ) {
if ( select &amp;&amp; it.<a href="qlistviewitemiterator.html#current">current</a>()-&gt;text( 0 ).contains( sFirstName-&gt;<a href="qlineedit.html#text">text</a>() ) )
select = TRUE;
else
select = FALSE;
}
if ( cLastName-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() ) {
if ( select &amp;&amp; it.<a href="qlistviewitemiterator.html#current">current</a>()-&gt;text( 1 ).contains( sLastName-&gt;<a href="qlineedit.html#text">text</a>() ) )
select = TRUE;
else
select = FALSE;
}
if ( cAddress-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() ) {
if ( select &amp;&amp; it.<a href="qlistviewitemiterator.html#current">current</a>()-&gt;text( 2 ).contains( sAddress-&gt;<a href="qlineedit.html#text">text</a>() ) )
select = TRUE;
else
select = FALSE;
}
if ( cEMail-&gt;<a href="qcheckbox.html#isChecked">isChecked</a>() ) {
if ( select &amp;&amp; it.<a href="qlistviewitemiterator.html#current">current</a>()-&gt;text( 3 ).contains( sEMail-&gt;<a href="qlineedit.html#text">text</a>() ) )
select = TRUE;
else
select = FALSE;
}
if ( select )
it.<a href="qlistviewitemiterator.html#current">current</a>()-&gt;setSelected( TRUE );
else
it.<a href="qlistviewitemiterator.html#current">current</a>()-&gt;setSelected( FALSE );
it.<a href="qlistviewitemiterator.html#current">current</a>()-&gt;repaint();
}
}
</pre>
<p> <hr>
<p> Main:
<p> <pre>/****************************************************************************
** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
**
** Copyright (C) 1992-2007 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 &lt;<a href="qapplication-h.html">qapplication.h</a>&gt;
#include "mainwindow.h"
int main( int argc, char ** argv )
{
<a href="qapplication.html">QApplication</a> a( argc, argv );
ABMainWindow *mw = new ABMainWindow();
mw-&gt;<a href="qwidget.html#setCaption">setCaption</a>( "Qt Example - Addressbook" );
a.<a href="qapplication.html#setMainWidget">setMainWidget</a>( mw );
<a name="x611"></a> mw-&gt;<a href="qwidget.html#show">show</a>();
<a name="x609"></a><a name="x608"></a> a.<a href="qobject.html#connect">connect</a>( &amp;a, SIGNAL( <a href="qapplication.html#lastWindowClosed">lastWindowClosed</a>() ), &amp;a, SLOT( <a href="qapplication.html#quit">quit</a>() ) );
int result = a.<a href="qapplication.html#exec">exec</a>();
delete mw;
return result;
}
</pre>
<p>See also <a href="examples.html">Examples</a>.
<!-- eof -->
<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright &copy; 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>Qt 3.3.8</div>
</table></div></address></body>
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