Qt Toolkit - i18n/main.cpp example file h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; } a:link { color: #004faf; text-decoration: none } a:visited { color: #672967; text-decoration: none }body { background: white; color: black; } --> alt="Home" border="0"> height="100" src="face.png" alt="Home" border="0"> Classes - Annotated - Tree - Functions - Home - Structure Qte Internationalization This example shows how to internationalize applications. Start it with # i18n de to get a german version and with # i18n en to get the english version. Also see the internationalization documentation. Header file: /**************************************************************************** ** $Id: qt/examples/i18n/mywidget.h 2.3.8 edited 2004-05-12 $ ** ** Copyright (C) 1992-2000 Trolltech AS. 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 MYWIDGET_H #define MYWIDGET_H #include <qmainwindow.h> #include <qstring.h> class MyWidget : public QMainWindow { Q_OBJECT public: MyWidget( QWidget* parent=0, const char* name = 0 ); signals: void closed(); protected: void closeEvent(QCloseEvent*); private: static void initChoices(QWidget* parent); }; #endif Implementation: /**************************************************************************** ** $Id: qt/examples/i18n/mywidget.cpp 2.3.8 edited 2004-05-12 $ ** ** Copyright (C) 1992-2000 Trolltech AS. 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 <qbuttongroup.h> #include <qradiobutton.h> #include <qlabel.h> #include <qlistbox.h> #include <qcombobox.h> #include <qlabel.h> #include <qhbox.h> #include <qvbox.h> #include <qaccel.h> #include <qpopupmenu.h> #include <qmenubar.h> #include <qstatusbar.h> #include <qapplication.h> #include "mywidget.h" MyWidget::MyWidget( QWidget* parent, const char* name ) : QMainWindow( parent, name ) { QVBox* central = new QVBox(this); central->setMargin( 5 ); central->setSpacing( 5 ); setCentralWidget(central); QPopupMenu* file = new QPopupMenu(this); file->insertItem( tr("E&xit"), qApp, SLOT(quit()), QAccel::stringToKey(tr("Ctrl+Q")) ); menuBar()->insertItem( tr("&File"), file ); setCaption( tr( "Internationalization Example" ) ); QString l; statusBar()->message( tr("Language: English") ); ( void )new QLabel( tr( "The Main Window" ), central ); QButtonGroup* gbox = new QButtonGroup( 1, QGroupBox::Horizontal, tr( "View" ), central ); (void)new QRadioButton( tr( "Perspective" ), gbox ); (void)new QRadioButton( tr( "Isometric" ), gbox ); (void)new QRadioButton( tr( "Oblique" ), gbox ); initChoices(central); } static const char* choices[] = { QT_TRANSLATE_NOOP( "MyWidget", "First" ), QT_TRANSLATE_NOOP( "MyWidget", "Second" ), QT_TRANSLATE_NOOP( "MyWidget", "Third" ), 0 }; void MyWidget::initChoices(QWidget* parent) { QListBox* lb = new QListBox( parent ); for ( int i = 0; choices[i]; i++ ) lb->insertItem( tr( choices[i] ) ); } void MyWidget::closeEvent(QCloseEvent* e) { QWidget::closeEvent(e); emit closed(); } Main: /**************************************************************************** ** $Id: qt/examples/i18n/main.cpp 2.3.8 edited 2004-05-12 $ ** ** Copyright (C) 1992-2000 Trolltech AS. 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 <qtranslator.h> #include <qfileinfo.h> #include <qmessagebox.h> #include <qcheckbox.h> #include <qvbox.h> #include <qlayout.h> #include <qbuttongroup.h> #include <qpushbutton.h> #include <qsignalmapper.h> #include <stdlib.h> #if defined(_OS_UNIX_) #include <unistd.h> #endif #include "mywidget.h" //#define USE_I18N_FONT class QVDialog : public QDialog { public: QVDialog(QWidget *parent=0, const char *name=0, bool modal=FALSE, WFlags f=0) : QDialog(parent,name,modal,f) { QVBoxLayout* vb = new QVBoxLayout(this,8); vb->setAutoAdd(TRUE); hb = 0; sm = new QSignalMapper(this); connect(sm,SIGNAL(mapped(int)),this,SLOT(done(int))); } void addButtons( const QString& cancel=QString::null, const QString& ok=QString::null, const QString& mid1=QString::null, const QString& mid2=QString::null, const QString& mid3=QString::null) { addButton(ok.isNull() ? tr("OK") : ok, 1); if ( !mid1.isNull() ) addButton(mid1,2); if ( !mid2.isNull() ) addButton(mid2,3); if ( !mid3.isNull() ) addButton(mid3,4); addButton(cancel.isNull() ? tr("Cancel") : cancel, 0); } void addButton( const QString& text, int result ) { if ( !hb ) hb = new QHBox(this); QPushButton *c = new QPushButton(text, hb); sm->setMapping(c,result); connect(c,SIGNAL(clicked()),sm,SLOT(map())); } private: QSignalMapper *sm; QHBox *hb; }; MyWidget* showLang(QString lang) { static QTranslator *translator = 0; qApp->setPalette(QPalette(QColor(220-rand()%64,220-rand()%64,220-rand()%64))); lang = "mywidget_" + lang + ".qm"; QFileInfo fi( lang ); if ( !fi.exists() ) { QMessageBox::warning( 0, "File error", QString("Cannot find translation for language: "+lang+ "\n(try eg. 'de', 'ko' or 'no')") ); return 0; } if ( translator ) { qApp->removeTranslator( translator ); delete translator; } translator = new QTranslator( 0 ); translator->load( lang, "." ); qApp->installTranslator( translator ); MyWidget *m = new MyWidget; m->setCaption("Qt Example - i18n - " + m->caption() ); return m; } int main( int argc, char** argv ) { QApplication app( argc, argv ); const char* qm[]= { "cs", "de", "el", "en", "eo", "fr", "it", "jp", "ko", "no", "ru", "zh", 0 }; #if defined(_OS_UNIX_) srand(getpid()<<2); #endif //QFont font("i18n,unifont,cyberbit;helvetica",16,50,FALSE,QFont::Unicode); QFont font("unifont",16,50,FALSE,QFont::Unicode); qApp->setFont(font); QString lang; if ( argc == 2 ) lang = argv[1]; if ( argc != 2 || lang == "all" ) { QVDialog dlg(0,0,TRUE); QCheckBox* qmb[sizeof(qm)/sizeof(qm[0])]; int r; if ( lang == "all" ) { r = 2; } else { QButtonGroup *bg = new QButtonGroup(4,Qt::Vertical,"Choose Locales",&dlg); for ( int i=0; qm[i]; i++ ) qmb[i] = new QCheckBox((const char*)qm[i],bg); dlg.addButtons("Cancel","OK","All"); r = dlg.exec(); } if ( r ) { bool tight = qApp->desktop()->width() < 1024; int x=5; int y=25; for ( int i=0; qm[i]; i++ ) { if ( r == 2 || qmb[i]->isChecked() ) { MyWidget* w = showLang((const char*)qm[i]); if( w == 0 ) exit( 0 ); QObject::connect(w, SIGNAL(closed()), qApp, SLOT(quit())); w->setGeometry(x,y,197,356); w->show(); if ( tight ) { x += 8; y += 8; } else { x += 205; if ( x > 1000 ) { x = 5; y += 384; } } } } } else { exit( 0 ); } } else { QString lang = argv[1]; QWidget* m = showLang(lang); app.setMainWidget( m ); m->setCaption("Qt Example - i18n"); m->show(); } // While we run "all", kill them all #ifdef USE_I18N_FONT memorymanager->savePrerenderedFont(font.handle(),FALSE); #endif return app.exec(); } Copyright
