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342 lines
14 KiB
342 lines
14 KiB
14 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/i18n/i18n.doc:4 -->
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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>Internationalization</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>Internationalization</h1>
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<p>
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This example shows how to internationalize applications. Start it with
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<pre># i18n de</pre><p> to get a german version and with
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<pre># i18n en</pre><p> to get the english version.
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<p> Refer also to <a href="i18n.html">the internationalization documentation</a>.
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<p> <hr>
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<p> Header file:
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<p> <pre>/****************************************************************************
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** $Id: qt/mywidget.h 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 Qt. 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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#ifndef MYWIDGET_H
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#define MYWIDGET_H
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#include <<a href="qmainwindow-h.html">qmainwindow.h</a>>
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#include <<a href="qstring-h.html">qstring.h</a>>
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class MyWidget : public <a href="qmainwindow.html">QMainWindow</a>
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{
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<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
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public:
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MyWidget( <a href="qwidget.html">QWidget</a>* parent=0, const char* name = 0 );
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signals:
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void closed();
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protected:
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void closeEvent(QCloseEvent*);
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private:
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static void initChoices(QWidget* parent);
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};
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#endif
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</pre>
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<p> <hr>
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<p> Implementation:
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<p> <pre>/****************************************************************************
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** $Id: qt/mywidget.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 Qt. 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 <<a href="qbuttongroup-h.html">qbuttongroup.h</a>>
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#include <<a href="qradiobutton-h.html">qradiobutton.h</a>>
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#include <<a href="qlabel-h.html">qlabel.h</a>>
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#include <<a href="qlistbox-h.html">qlistbox.h</a>>
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#include <<a href="qcombobox-h.html">qcombobox.h</a>>
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#include <<a href="qlabel-h.html">qlabel.h</a>>
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#include <<a href="qhbox-h.html">qhbox.h</a>>
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#include <<a href="qvbox-h.html">qvbox.h</a>>
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#include <<a href="qaccel-h.html">qaccel.h</a>>
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#include <<a href="qpopupmenu-h.html">qpopupmenu.h</a>>
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#include <<a href="qmenubar-h.html">qmenubar.h</a>>
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#include <<a href="qstatusbar-h.html">qstatusbar.h</a>>
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#include <<a href="qapplication-h.html">qapplication.h</a>>
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#include "mywidget.h"
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<a name="f525"></a>MyWidget::MyWidget( <a href="qwidget.html">QWidget</a>* parent, const char* name )
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: <a href="qmainwindow.html">QMainWindow</a>( parent, name )
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{
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<a href="qvbox.html">QVBox</a>* central = new <a href="qvbox.html">QVBox</a>(this);
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<a name="x1923"></a> central-><a href="qframe.html#setMargin">setMargin</a>( 5 );
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<a name="x1924"></a> central-><a href="qhbox.html#setSpacing">setSpacing</a>( 5 );
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<a href="qmainwindow.html#setCentralWidget">setCentralWidget</a>(central);
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<a href="qpopupmenu.html">QPopupMenu</a>* file = new <a href="qpopupmenu.html">QPopupMenu</a>(this);
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file-><a href="qmenudata.html#insertItem">insertItem</a>( <a href="qobject.html#tr">tr</a>("E&xit"), qApp, SLOT(<a href="qapplication.html#quit">quit</a>()),
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<a name="x1921"></a> QAccel::<a href="qaccel.html#stringToKey">stringToKey</a>(<a href="qobject.html#tr">tr</a>("Ctrl+Q")) );
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<a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( <a href="qobject.html#tr">tr</a>("&File"), file );
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<a href="qwidget.html#setCaption">setCaption</a>( <a href="qobject.html#tr">tr</a>( "Internationalization Example" ) );
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<a href="qstring.html">QString</a> l;
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<a href="qmainwindow.html#statusBar">statusBar</a>()->message( <a href="qobject.html#tr">tr</a>("Language: English") );
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( void )new <a href="qlabel.html">QLabel</a>( <a href="qobject.html#tr">tr</a>( "The Main Window" ), central );
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<a href="qbuttongroup.html">QButtonGroup</a>* gbox = new <a href="qbuttongroup.html">QButtonGroup</a>( 1, QGroupBox::Horizontal,
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<a href="qobject.html#tr">tr</a>( "View" ), central );
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(void)new <a href="qradiobutton.html">QRadioButton</a>( <a href="qobject.html#tr">tr</a>( "Perspective" ), gbox );
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(void)new <a href="qradiobutton.html">QRadioButton</a>( <a href="qobject.html#tr">tr</a>( "Isometric" ), gbox );
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(void)new <a href="qradiobutton.html">QRadioButton</a>( <a href="qobject.html#tr">tr</a>( "Oblique" ), gbox );
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initChoices(central);
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}
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static const char* choices[] = {
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QT_TRANSLATE_NOOP( "MyWidget", "First" ),
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QT_TRANSLATE_NOOP( "MyWidget", "Second" ),
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QT_TRANSLATE_NOOP( "MyWidget", "Third" ),
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0
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};
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void <a name="f526"></a>MyWidget::initChoices(QWidget* parent)
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{
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<a href="qlistbox.html">QListBox</a>* lb = new <a href="qlistbox.html">QListBox</a>( parent );
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for ( int i = 0; choices[i]; i++ )
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<a name="x1925"></a> lb-><a href="qlistbox.html#insertItem">insertItem</a>( <a href="qobject.html#tr">tr</a>( choices[i] ) );
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}
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<a name="x1927"></a>void MyWidget::<a href="qwidget.html#closeEvent">closeEvent</a>(QCloseEvent* e)
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{
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QWidget::<a href="qwidget.html#closeEvent">closeEvent</a>(e);
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emit closed();
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}
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</pre>
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<p> <hr>
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<p> Main:
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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 Qt. 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 <<a href="qapplication-h.html">qapplication.h</a>>
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#include <<a href="qtranslator-h.html">qtranslator.h</a>>
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#include <<a href="qfileinfo-h.html">qfileinfo.h</a>>
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#include <<a href="qmessagebox-h.html">qmessagebox.h</a>>
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#include <<a href="qcheckbox-h.html">qcheckbox.h</a>>
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#include <<a href="qvbox-h.html">qvbox.h</a>>
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#include <<a href="qlayout-h.html">qlayout.h</a>>
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#include <<a href="qbuttongroup-h.html">qbuttongroup.h</a>>
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#include <<a href="qpushbutton-h.html">qpushbutton.h</a>>
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#include <<a href="qsignalmapper-h.html">qsignalmapper.h</a>>
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#include <<a href="qtextcodec-h.html">qtextcodec.h</a>>
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#include <stdlib.h>
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#if defined(Q_OS_UNIX)
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#include <unistd.h>
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#endif
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#include "mywidget.h"
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//#define USE_I18N_FONT
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class QVDialog : public <a href="qdialog.html">QDialog</a> {
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public:
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QVDialog(QWidget *parent=0, const char *name=0, bool modal=FALSE,
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WFlags f=0) : <a href="qdialog.html">QDialog</a>(parent,name,modal,f)
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{
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<a href="qvboxlayout.html">QVBoxLayout</a>* vb = new <a href="qvboxlayout.html">QVBoxLayout</a>(this,8);
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<a name="x1938"></a> vb-><a href="qlayout.html#setAutoAdd">setAutoAdd</a>(TRUE);
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hb = 0;
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sm = new <a href="qsignalmapper.html">QSignalMapper</a>(this);
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<a name="x1946"></a> connect(sm,SIGNAL(<a href="qsignalmapper.html#mapped">mapped</a>(int)),this,SLOT(done(int)));
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}
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void addButtons( const <a href="qstring.html">QString</a>& cancel=QString::null,
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const <a href="qstring.html">QString</a>& ok=QString::null,
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const <a href="qstring.html">QString</a>& mid1=QString::null,
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const <a href="qstring.html">QString</a>& mid2=QString::null,
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const <a href="qstring.html">QString</a>& mid3=QString::null)
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{
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<a name="x1948"></a> addButton(ok.<a href="qstring.html#isNull">isNull</a>() ? QObject::tr("OK") : ok, 1);
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if ( !mid1.<a href="qstring.html#isNull">isNull</a>() ) addButton(mid1,2);
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if ( !mid2.<a href="qstring.html#isNull">isNull</a>() ) addButton(mid2,3);
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if ( !mid3.<a href="qstring.html#isNull">isNull</a>() ) addButton(mid3,4);
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addButton(cancel.<a href="qstring.html#isNull">isNull</a>() ? QObject::tr("Cancel") : cancel, 0);
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}
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void addButton( const <a href="qstring.html">QString</a>& text, int result )
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{
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if ( !hb )
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hb = new <a href="qhbox.html">QHBox</a>(this);
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<a href="qpushbutton.html">QPushButton</a> *c = new <a href="qpushbutton.html">QPushButton</a>(text, hb);
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<a name="x1947"></a> sm-><a href="qsignalmapper.html#setMapping">setMapping</a>(c,result);
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<a name="x1945"></a> connect(c,SIGNAL(<a href="qbutton.html#clicked">clicked</a>()),sm,SLOT(<a href="qsignalmapper.html#map">map</a>()));
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}
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private:
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<a href="qsignalmapper.html">QSignalMapper</a> *sm;
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<a href="qhbox.html">QHBox</a> *hb;
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};
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MyWidget* showLang(QString lang)
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{
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static QTranslator *translator = 0;
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<a name="x1934"></a> qApp-><a href="qapplication.html#setPalette">setPalette</a>(QPalette(QColor(220-rand()%64,220-rand()%64,220-rand()%64)));
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lang = "mywidget_" + lang + ".qm";
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<a href="qfileinfo.html">QFileInfo</a> fi( lang );
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<a name="x1937"></a> if ( !fi.<a href="qfileinfo.html#exists">exists</a>() ) {
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<a name="x1940"></a> QMessageBox::<a href="qmessagebox.html#warning">warning</a>( 0, "File error",
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QString("Cannot find translation for language: "+lang+
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"\n(try eg. 'de', 'ko' or 'no')") );
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return 0;
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}
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if ( translator ) {
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<a name="x1932"></a> qApp-><a href="qapplication.html#removeTranslator">removeTranslator</a>( translator );
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delete translator;
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}
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translator = new <a href="qtranslator.html">QTranslator</a>( 0 );
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<a name="x1950"></a> translator-><a href="qtranslator.html#load">load</a>( lang, "." );
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<a name="x1930"></a> qApp-><a href="qapplication.html#installTranslator">installTranslator</a>( translator );
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MyWidget *m = new MyWidget;
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<a name="x1951"></a> m-><a href="qwidget.html#setCaption">setCaption</a>("Qt Example - <a href="i18n.html#i18n">i18n</a> - " + m-><a href="qwidget.html#caption">caption</a>() );
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return m;
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}
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int main( int argc, char** argv )
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{
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<a href="qapplication.html">QApplication</a> app( argc, argv );
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const char* qm[]=
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{ "ar", "cs", "de", "el", "en", "eo", "fr", "it", "jp", "ko", "no", "ru", "zh", 0 };
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#if defined(Q_OS_UNIX)
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srand( getpid() << 2 );
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#endif
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<a href="qstring.html">QString</a> lang;
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if ( argc == 2 )
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lang = argv[1];
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if ( argc != 2 || lang == "all" ) {
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QVDialog dlg(0,0,TRUE);
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QCheckBox* qmb[sizeof(qm)/sizeof(qm[0])];
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int r;
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if ( lang == "all" ) {
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r = 2;
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} else {
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<a href="qbuttongroup.html">QButtonGroup</a> *bg = new <a href="qbuttongroup.html">QButtonGroup</a>(4,Qt::Vertical,"Choose Locales",&dlg);
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<a name="x1949"></a> <a href="qstring.html">QString</a> loc = QTextCodec::<a href="qtextcodec.html#locale">locale</a>();
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for ( int i=0; qm[i]; i++ ) {
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qmb[i] = new <a href="qcheckbox.html">QCheckBox</a>((const char*)qm[i],bg);
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qmb[i]->setChecked( loc == qm[i] );
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}
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dlg.addButtons("Cancel","OK","All");
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<a name="x1936"></a> r = dlg.<a href="qdialog.html#exec">exec</a>();
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}
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if ( r ) {
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<a name="x1928"></a> <a href="qrect.html">QRect</a> screen = qApp-><a href="qapplication.html#desktop">desktop</a>()->availableGeometry();
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bool tight = screen.<a href="qrect.html#width">width</a>() < 1024;
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<a name="x1942"></a> int x=screen.<a href="qrect.html#left">left</a>()+5;
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int y=screen.<a href="qrect.html#top">top</a>()+25;
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for ( int i=0; qm[i]; i++ ) {
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if ( r == 2 || qmb[i]->isChecked() ) {
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MyWidget* w = showLang((const char*)qm[i]);
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if( w == 0 ) exit( 0 );
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QObject::<a href="qobject.html#connect">connect</a>(w, SIGNAL(closed()), qApp, SLOT(<a href="qapplication.html#quit">quit</a>()));
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<a name="x1953"></a> w-><a href="qwidget.html#setGeometry">setGeometry</a>(x,y,197,356);
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w-><a href="qwidget.html#show">show</a>();
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if ( tight ) {
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x += 8;
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y += 8;
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} else {
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x += 205;
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if ( x > 1000 ) {
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x = 5;
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y += 384;
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}
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}
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}
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}
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} else {
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exit( 0 );
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}
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} else {
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<a href="qstring.html">QString</a> lang = argv[1];
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<a href="qwidget.html">QWidget</a>* m = showLang(lang);
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app.<a href="qapplication.html#setMainWidget">setMainWidget</a>( m );
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m-><a href="qwidget.html#setCaption">setCaption</a>("Qt Example - i18n");
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m-><a href="qwidget.html#show">show</a>();
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}
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#ifdef USE_I18N_FONT
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memorymanager->savePrerenderedFont(font.handle(),FALSE);
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#endif
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// While we run "all", kill them all
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return app.<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="examples.html">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>Qt 3.3.8</div>
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</table></div></address></body>
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</html>
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