8f8d58d193
Change {DECLARE,IMPLEMENT}_*CLASS and {DECLARE,BEGIN,END}_EVENT_TABLE
occurrences to use the wx-prefixed version of the macros.
524 lines
16 KiB
C++
524 lines
16 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: internat.cpp
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// Purpose: Demonstrates internationalisation (i18n) support
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// Author: Vadim Zeitlin/Julian Smart
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// Modified by:
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// Created: 04/01/98
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// NOTE: don't miss the "readme.txt" file which comes with this sample!
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/intl.h"
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#include "wx/file.h"
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#include "wx/log.h"
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#include "wx/cmdline.h"
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#ifndef wxHAS_IMAGES_IN_RESOURCES
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#include "../sample.xpm"
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#endif
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// ----------------------------------------------------------------------------
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// private classes
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// ----------------------------------------------------------------------------
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// Define a new application type
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class MyApp: public wxApp
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{
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public:
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MyApp() { m_lang = wxLANGUAGE_UNKNOWN; }
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virtual void OnInitCmdLine(wxCmdLineParser& parser) wxOVERRIDE;
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virtual bool OnCmdLineParsed(wxCmdLineParser& parser) wxOVERRIDE;
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virtual bool OnInit() wxOVERRIDE;
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protected:
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wxLanguage m_lang; // language specified by user
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wxLocale m_locale; // locale we'll be using
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};
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// Define a new frame type
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class MyFrame: public wxFrame
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{
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public:
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MyFrame(wxLocale& m_locale);
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public:
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void OnTestLocaleAvail(wxCommandEvent& event);
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void OnAbout(wxCommandEvent& event);
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void OnQuit(wxCommandEvent& event);
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void OnPlay(wxCommandEvent& event);
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void OnOpen(wxCommandEvent& event);
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void OnTest1(wxCommandEvent& event);
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void OnTest2(wxCommandEvent& event);
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void OnTest3(wxCommandEvent& event);
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void OnTestMsgBox(wxCommandEvent& event);
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wxDECLARE_EVENT_TABLE();
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wxLocale& m_locale;
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};
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// ID for the menu commands
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enum
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{
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INTERNAT_TEST = wxID_HIGHEST + 1,
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INTERNAT_PLAY,
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INTERNAT_TEST_1,
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INTERNAT_TEST_2,
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INTERNAT_TEST_3,
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INTERNAT_TEST_MSGBOX
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};
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// language data
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static const wxLanguage langIds[] =
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{
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wxLANGUAGE_DEFAULT,
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wxLANGUAGE_FRENCH,
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wxLANGUAGE_ITALIAN,
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wxLANGUAGE_GERMAN,
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wxLANGUAGE_RUSSIAN,
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wxLANGUAGE_BULGARIAN,
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wxLANGUAGE_CZECH,
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wxLANGUAGE_POLISH,
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wxLANGUAGE_SWEDISH,
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#if wxUSE_UNICODE || defined(__WXMOTIF__)
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wxLANGUAGE_JAPANESE,
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#endif
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#if wxUSE_UNICODE
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wxLANGUAGE_GEORGIAN,
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wxLANGUAGE_ENGLISH,
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wxLANGUAGE_ENGLISH_US,
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wxLANGUAGE_ARABIC,
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wxLANGUAGE_ARABIC_EGYPT
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#endif
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};
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// note that it makes no sense to translate these strings, they are
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// shown before we set the locale anyhow
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const wxString langNames[] =
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{
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"System default",
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"French",
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"Italian",
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"German",
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"Russian",
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"Bulgarian",
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"Czech",
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"Polish",
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"Swedish",
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#if wxUSE_UNICODE || defined(__WXMOTIF__)
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"Japanese",
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#endif
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#if wxUSE_UNICODE
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"Georgian",
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"English",
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"English (U.S.)",
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"Arabic",
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"Arabic (Egypt)"
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#endif
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};
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// the arrays must be in sync
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wxCOMPILE_TIME_ASSERT( WXSIZEOF(langNames) == WXSIZEOF(langIds),
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LangArraysMismatch );
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// ----------------------------------------------------------------------------
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// wxWidgets macros
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// ----------------------------------------------------------------------------
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wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
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EVT_MENU(INTERNAT_TEST, MyFrame::OnTestLocaleAvail)
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EVT_MENU(wxID_ABOUT, MyFrame::OnAbout)
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EVT_MENU(wxID_EXIT, MyFrame::OnQuit)
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EVT_MENU(INTERNAT_PLAY, MyFrame::OnPlay)
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EVT_MENU(wxID_OPEN, MyFrame::OnOpen)
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EVT_MENU(INTERNAT_TEST_1, MyFrame::OnTest1)
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EVT_MENU(INTERNAT_TEST_2, MyFrame::OnTest2)
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EVT_MENU(INTERNAT_TEST_3, MyFrame::OnTest3)
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EVT_MENU(INTERNAT_TEST_MSGBOX, MyFrame::OnTestMsgBox)
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wxEND_EVENT_TABLE()
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wxIMPLEMENT_APP(MyApp);
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// MyApp
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// ----------------------------------------------------------------------------
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// command line arguments handling
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void MyApp::OnInitCmdLine(wxCmdLineParser& parser)
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{
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parser.AddParam(_("locale"),
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wxCMD_LINE_VAL_STRING,
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wxCMD_LINE_PARAM_OPTIONAL);
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wxApp::OnInitCmdLine(parser);
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}
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bool MyApp::OnCmdLineParsed(wxCmdLineParser& parser)
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{
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if ( !wxApp::OnCmdLineParsed(parser) )
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return false;
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if ( parser.GetParamCount() )
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{
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const wxString loc = parser.GetParam();
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const wxLanguageInfo * const lang = wxLocale::FindLanguageInfo(loc);
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if ( !lang )
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{
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wxLogError(_("Locale \"%s\" is unknown."), loc);
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return false;
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}
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m_lang = static_cast<wxLanguage>(lang->Language);
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}
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return true;
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}
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// `Main program' equivalent, creating windows and returning main app frame
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bool MyApp::OnInit()
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{
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if ( !wxApp::OnInit() )
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return false;
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if ( m_lang == wxLANGUAGE_UNKNOWN )
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{
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int lng = wxGetSingleChoiceIndex
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(
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_("Please choose language:"),
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_("Language"),
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WXSIZEOF(langNames),
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langNames
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);
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m_lang = lng == -1 ? wxLANGUAGE_DEFAULT : langIds[lng];
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}
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// don't use wxLOCALE_LOAD_DEFAULT flag so that Init() doesn't return
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// false just because it failed to load wxstd catalog
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if ( !m_locale.Init(m_lang, wxLOCALE_DONT_LOAD_DEFAULT) )
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{
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wxLogWarning(_("This language is not supported by the system."));
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// continue nevertheless
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}
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// normally this wouldn't be necessary as the catalog files would be found
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// in the default locations, but when the program is not installed the
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// catalogs are in the build directory where we wouldn't find them by
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// default
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wxLocale::AddCatalogLookupPathPrefix(".");
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// Initialize the catalogs we'll be using
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const wxLanguageInfo* pInfo = wxLocale::GetLanguageInfo(m_lang);
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if (!m_locale.AddCatalog("internat"))
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{
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wxLogError(_("Couldn't find/load the 'internat' catalog for locale '%s'."),
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pInfo ? pInfo->GetLocaleName() : _("unknown"));
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}
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// Now try to add wxstd.mo so that loading "NOTEXIST.ING" file will produce
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// a localized error message:
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m_locale.AddCatalog("wxstd");
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// NOTE: it's not an error if we couldn't find it!
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// this catalog is installed in standard location on Linux systems and
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// shows that you may make use of the standard message catalogs as well
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//
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// if it's not installed on your system, it is just silently ignored
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#ifdef __LINUX__
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{
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wxLogNull noLog;
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m_locale.AddCatalog("fileutils");
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}
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#endif
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// Create the main frame window
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MyFrame *frame = new MyFrame(m_locale);
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// Show the frame
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frame->Show(true);
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return true;
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}
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// ----------------------------------------------------------------------------
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// MyFrame
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// ----------------------------------------------------------------------------
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// main frame constructor
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MyFrame::MyFrame(wxLocale& locale)
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: wxFrame(NULL,
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wxID_ANY,
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_("International wxWidgets App")),
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m_locale(locale)
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{
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SetIcon(wxICON(sample));
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// Make a menubar
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wxMenu *file_menu = new wxMenu;
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file_menu->Append(INTERNAT_TEST, _("&Test locale availability...\tCtrl-T"));
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file_menu->AppendSeparator();
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// since wxID_ABOUT and wxID_EXIT are stock IDs they will automatically get
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// translated help strings; nice isn't it?
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file_menu->Append(wxID_ABOUT, _("&About"));
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file_menu->AppendSeparator();
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file_menu->Append(wxID_EXIT, _("E&xit"));
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wxMenu *test_menu = new wxMenu;
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test_menu->Append(wxID_OPEN, _("&Open bogus file"), _("Shows a wxWidgets localized error message"));
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test_menu->Append(INTERNAT_PLAY, _("&Play a game"), _("A little game; hint: 17 is a lucky number for many"));
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test_menu->AppendSeparator();
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test_menu->Append(INTERNAT_TEST_1, _("&1 _() (gettext)"), _("Tests the _() macro"));
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test_menu->Append(INTERNAT_TEST_2, _("&2 _N() (ngettext)"), _("Tests the _N() macro"));
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test_menu->Append(INTERNAT_TEST_3, _("&3 wxTRANSLATE() (gettext_noop)"), _("Tests the wxTRANSLATE() macro"));
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test_menu->Append(INTERNAT_TEST_MSGBOX, _("&Message box test"),
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_("Tests message box buttons labels translation"));
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wxMenuBar *menu_bar = new wxMenuBar;
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menu_bar->Append(file_menu, _("&File"));
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menu_bar->Append(test_menu, _("&Test"));
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SetMenuBar(menu_bar);
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// this demonstrates RTL support in wxStatusBar:
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CreateStatusBar(1);
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// this demonstrates RTL layout mirroring for Arabic locales
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wxSizer *sizer = new wxBoxSizer(wxHORIZONTAL);
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sizer->Add(new wxStaticText(this, wxID_ANY, _("First")),
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wxSizerFlags().Border());
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sizer->Add(new wxStaticText(this, wxID_ANY, _("Second")),
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wxSizerFlags().Border());
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SetSizer(sizer);
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}
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void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
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{
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Close(true);
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}
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void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
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{
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wxString localeInfo;
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wxString locale = m_locale.GetLocale();
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wxString sysname = m_locale.GetSysName();
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wxString canname = m_locale.GetCanonicalName();
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localeInfo.Printf(_("Language: %s\nSystem locale name: %s\nCanonical locale name: %s\n"),
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locale.c_str(), sysname.c_str(), canname.c_str() );
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wxMessageDialog dlg(
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this,
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wxString(_("I18n sample\n(c) 1998, 1999 Vadim Zeitlin and Julian Smart"))
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+ "\n\n"
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+ localeInfo,
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_("About Internat"),
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wxOK | wxICON_INFORMATION
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);
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dlg.ShowModal();
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}
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void MyFrame::OnPlay(wxCommandEvent& WXUNUSED(event))
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{
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wxString str = wxGetTextFromUser
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(
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_("Enter your number:"),
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_("Try to guess my number!"),
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wxEmptyString,
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this
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);
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if ( str.empty() )
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{
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// cancelled
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return;
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}
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long num;
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if ( !str.ToLong(&num) || num < 0 )
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{
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str = _("You've probably entered an invalid number.");
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}
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else if ( num == 9 )
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{
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// this message is not translated (not in catalog) because we used wxT()
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// and not _() around it
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str = wxT("You've found a bug in this program!");
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}
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else if ( num == 17 )
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{
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str.clear();
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// string must be split in two -- otherwise the translation would't be
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// found
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str << _("Congratulations! you've won. Here is the magic phrase:")
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<< _("cannot create fifo `%s'");
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}
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else
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{
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// this is a more implicit way to write _() but note that if you use it
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// you must ensure that the strings get extracted in the message
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// catalog as by default xgettext won't do it; it only knows of _(),
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// not of wxTRANSLATE(). As internat's readme.txt says you should thus
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// call xgettext with -kwxTRANSLATE.
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str = wxGetTranslation(wxTRANSLATE("Bad luck! try again..."));
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// note also that if we want 'str' to contain a localized string
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// we need to use wxGetTranslation explicitly as wxTRANSLATE just
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// tells xgettext to extract the string but has no effect on the
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// runtime of the program!
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}
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wxMessageBox(str, _("Result"), wxOK | wxICON_INFORMATION);
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}
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void MyFrame::OnTestLocaleAvail(wxCommandEvent& WXUNUSED(event))
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{
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static wxString s_locale;
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wxString locale = wxGetTextFromUser
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(
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_("Enter the locale to test"),
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wxGetTextFromUserPromptStr,
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s_locale,
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this
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);
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if ( locale.empty() )
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return;
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s_locale = locale;
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const wxLanguageInfo * const info = wxLocale::FindLanguageInfo(s_locale);
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if ( !info )
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{
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wxLogError(_("Locale \"%s\" is unknown."), s_locale.c_str());
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return;
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}
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if ( wxLocale::IsAvailable(info->Language) )
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{
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wxLogMessage(_("Locale \"%s\" is available."), s_locale.c_str());
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}
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else
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{
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wxLogWarning(_("Locale \"%s\" is not available."), s_locale.c_str());
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}
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}
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void MyFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
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{
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// open a bogus file -- the error message should be also translated if
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// you've got wxstd.mo somewhere in the search path (see MyApp::OnInit)
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wxFile file("NOTEXIST.ING");
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}
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void MyFrame::OnTest1(wxCommandEvent& WXUNUSED(event))
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{
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const wxString& title = _("Testing _() (gettext)");
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// NOTE: using the wxTRANSLATE() macro here we won't show a localized
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// string in the text entry dialog; we'll simply show the un-translated
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// string; however if the user press "ok" without altering the text,
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// since the "default value" string has been extracted by xgettext
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// the wxGetTranslation call later will manage to return a localized
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// string
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wxTextEntryDialog d(this, _("Please enter text to translate"),
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title, wxTRANSLATE("default value"));
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if (d.ShowModal() == wxID_OK)
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{
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wxString v = d.GetValue();
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wxString s(title);
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s << "\n" << v << " -> "
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<< wxGetTranslation(v.c_str()) << "\n";
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wxMessageBox(s);
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}
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}
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void MyFrame::OnTest2(wxCommandEvent& WXUNUSED(event))
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{
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const wxString& title = _("Testing _N() (ngettext)");
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wxTextEntryDialog d(this,
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_("Please enter range for plural forms of \"n files deleted\" phrase"),
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title, "0-10");
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if (d.ShowModal() == wxID_OK)
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{
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int first, last;
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wxSscanf(d.GetValue(), "%d-%d", &first, &last);
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wxString s(title);
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s << "\n";
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for (int n = first; n <= last; ++n)
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{
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s << n << " " <<
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wxPLURAL("file deleted", "files deleted", n) <<
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"\n";
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}
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wxMessageBox(s);
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}
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}
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void MyFrame::OnTest3(wxCommandEvent& WXUNUSED(event))
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{
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const char* lines[] =
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{
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wxTRANSLATE("line 1"),
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wxTRANSLATE("line 2"),
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wxTRANSLATE("line 3"),
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};
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wxString s(_("Testing wxTRANSLATE() (gettext_noop)"));
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s << "\n";
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for (size_t i = 0; i < WXSIZEOF(lines); ++i)
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{
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s << lines[i] << " -> " << wxGetTranslation(lines[i]) << "\n";
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}
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wxMessageBox(s);
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}
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void MyFrame::OnTestMsgBox(wxCommandEvent& WXUNUSED(event))
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{
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if ( wxMessageBox
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(
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_("Are the labels of the buttons in this message box "
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"translated into the current locale language?"),
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_("wxWidgets i18n sample"),
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wxYES_NO,
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this
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) != wxYES )
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{
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wxMessageBox(_("Please report the details of your platform to us."));
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}
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}
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