X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e87271f35887a50e011c7c97fc63c35f5d623e50..878711c01c1b9ad5b97d35f379a048b8ce1bfb49:/src/common/appcmn.cpp?ds=sidebyside diff --git a/src/common/appcmn.cpp b/src/common/appcmn.cpp index d72316a6dd..25bda2572b 100644 --- a/src/common/appcmn.cpp +++ b/src/common/appcmn.cpp @@ -30,15 +30,172 @@ #ifndef WX_PRECOMP #include "wx/app.h" + #include "wx/intl.h" #include "wx/list.h" + #if wxUSE_LOG + #include "wx/log.h" + #endif // wxUSE_LOG + #if wxUSE_GUI + #include "wx/msgdlg.h" + #endif // wxUSE_GUI #endif +#include "wx/cmdline.h" #include "wx/thread.h" +#include "wx/confbase.h" +#include "wx/tokenzr.h" +#include "wx/utils.h" +#include "wx/msgout.h" + +#if wxUSE_GUI + #include "wx/artprov.h" +#endif // wxUSE_GUI + +#if !defined(__WXMSW__) || defined(__WXMICROWIN__) + #include // for SIGTRAP used by wxTrap() +#endif //Win/Unix + +#if defined(__WXMSW__) + #include "wx/msw/private.h" // includes windows.h for MessageBox() +#endif + +#if defined(__WXMAC__) + #include "wx/mac/private.h" // includes mac headers +#endif + +// private functions prototypes +#ifdef __WXDEBUG__ + static void LINKAGEMODE SetTraceMasks(); +#endif // __WXDEBUG__ // =========================================================================== // implementation // =========================================================================== +// ---------------------------------------------------------------------------- +// initialization and termination +// ---------------------------------------------------------------------------- + +wxAppBase::wxAppBase() +{ + wxTheApp = (wxApp *)this; + +#if WXWIN_COMPATIBILITY_2_2 + m_wantDebugOutput = FALSE; +#endif // WXWIN_COMPATIBILITY_2_2 + +#if wxUSE_GUI + m_topWindow = (wxWindow *)NULL; + m_useBestVisual = FALSE; + m_isActive = TRUE; + + // We don't want to exit the app if the user code shows a dialog from its + // OnInit() -- but this is what would happen if we set m_exitOnFrameDelete + // to Yes initially as this dialog would be the last top level window. + // OTOH, if we set it to No initially we'll have to overwrite it with Yes + // when we enter our OnRun() because we do want the default behaviour from + // then on. But this would be a problem if the user code calls + // SetExitOnFrameDelete(FALSE) from OnInit(). + // + // So we use the special "Later" value which is such that + // GetExitOnFrameDelete() returns FALSE for it but which we know we can + // safely (i.e. without losing the effect of the users SetExitOnFrameDelete + // call) overwrite in OnRun() + m_exitOnFrameDelete = Later; +#endif // wxUSE_GUI + +#ifdef __WXDEBUG__ + SetTraceMasks(); +#endif +} + +wxAppBase::~wxAppBase() +{ + // this destructor is required for Darwin +} + +#if wxUSE_GUI + +bool wxAppBase::OnInitGui() +{ +#ifdef __WXUNIVERSAL__ + if ( !wxTheme::Get() && !wxTheme::CreateDefault() ) + return FALSE; +#endif // __WXUNIVERSAL__ + + return TRUE; +} + +int wxAppBase::OnRun() +{ + // see the comment in ctor: if the initial value hasn't been changed, use + // the default Yes from now on + if ( m_exitOnFrameDelete == Later ) + { + m_exitOnFrameDelete = Yes; + } + //else: it has been changed, assume the user knows what he is doing + + return MainLoop(); +} + +#endif // wxUSE_GUI + +int wxAppBase::OnExit() +{ +#if wxUSE_CONFIG + // delete the config object if any (don't use Get() here, but Set() + // because Get() could create a new config object) + delete wxConfigBase::Set((wxConfigBase *) NULL); +#endif // wxUSE_CONFIG + +#ifdef __WXUNIVERSAL__ + delete wxTheme::Set(NULL); +#endif // __WXUNIVERSAL__ + + // use Set(NULL) and not Get() to avoid creating a message output object on + // demand when we just want to delete it + delete wxMessageOutput::Set(NULL); + + return 0; +} + +// ---------------------------------------------------------------------------- +// customization hooks +// ---------------------------------------------------------------------------- + +#if wxUSE_LOG + +wxLog *wxAppBase::CreateLogTarget() +{ +#if wxUSE_GUI && wxUSE_LOGGUI && !defined(__WXMICROWIN__) + return new wxLogGui; +#else // !GUI + return new wxLogStderr; +#endif // wxUSE_GUI +} + +#endif // wxUSE_LOG + +wxMessageOutput *wxAppBase::CreateMessageOutput() +{ + // The standard way of printing help on command line arguments (app --help) + // is (according to common practice): + // - console apps: to stderr (on any platform) + // - GUI apps: stderr on Unix platforms (!) + // message box under Windows and others +#if wxUSE_GUI && !defined(__UNIX__) + // wxMessageOutputMessageBox doesn't work under Motif + #ifdef __WXMOTIF__ + return new wxMessageOutputLog; + #else + return new wxMessageOutputMessageBox; + #endif +#else // !wxUSE_GUI || __UNIX__ + return new wxMessageOutputStderr; +#endif +} + // --------------------------------------------------------------------------- // wxAppBase // ---------------------------------------------------------------------------- @@ -46,21 +203,460 @@ void wxAppBase::ProcessPendingEvents() { // ensure that we're the only thread to modify the pending events list - wxCRIT_SECT_LOCKER(locker, wxPendingEventsLocker); + wxENTER_CRIT_SECT( *wxPendingEventsLocker ); if ( !wxPendingEvents ) + { + wxLEAVE_CRIT_SECT( *wxPendingEventsLocker ); return; + } // iterate until the list becomes empty - wxNode *node = wxPendingEvents->First(); + wxNode *node = wxPendingEvents->GetFirst(); while (node) { - wxEvtHandler *handler = (wxEvtHandler *)node->Data(); + wxEvtHandler *handler = (wxEvtHandler *)node->GetData(); + delete node; + // In ProcessPendingEvents(), new handlers might be add + // and we can safely leave the critical section here. + wxLEAVE_CRIT_SECT( *wxPendingEventsLocker ); handler->ProcessPendingEvents(); + wxENTER_CRIT_SECT( *wxPendingEventsLocker ); - delete node; - node = wxPendingEvents->First(); + node = wxPendingEvents->GetFirst(); + } + + wxLEAVE_CRIT_SECT( *wxPendingEventsLocker ); +} + +// ---------------------------------------------------------------------------- +// misc +// ---------------------------------------------------------------------------- + +#if wxUSE_GUI + +void wxAppBase::SetActive(bool active, wxWindow * WXUNUSED(lastFocus)) +{ + if ( active == m_isActive ) + return; + + m_isActive = active; + + wxActivateEvent event(wxEVT_ACTIVATE_APP, active); + event.SetEventObject(this); + + (void)ProcessEvent(event); +} + +#endif // wxUSE_GUI + +int wxAppBase::FilterEvent(wxEvent& WXUNUSED(event)) +{ + // process the events normally by default + return -1; +} + +// ---------------------------------------------------------------------------- +// cmd line parsing +// ---------------------------------------------------------------------------- + +bool wxAppBase::OnInit() +{ +#if wxUSE_CMDLINE_PARSER + wxCmdLineParser parser(argc, argv); + + OnInitCmdLine(parser); + + bool cont; + switch ( parser.Parse(FALSE /* don't show usage */) ) + { + case -1: + cont = OnCmdLineHelp(parser); + break; + + case 0: + cont = OnCmdLineParsed(parser); + break; + + default: + cont = OnCmdLineError(parser); + break; + } + + if ( !cont ) + return FALSE; +#endif // wxUSE_CMDLINE_PARSER + + return TRUE; +} + +#if wxUSE_CMDLINE_PARSER + +#define OPTION_VERBOSE _T("verbose") +#define OPTION_THEME _T("theme") +#define OPTION_MODE _T("mode") + +void wxAppBase::OnInitCmdLine(wxCmdLineParser& parser) +{ + // the standard command line options + static const wxCmdLineEntryDesc cmdLineDesc[] = + { + { + wxCMD_LINE_SWITCH, + _T("h"), + _T("help"), + gettext_noop("show this help message"), + wxCMD_LINE_VAL_NONE, + wxCMD_LINE_OPTION_HELP + }, + +#if wxUSE_LOG + { + wxCMD_LINE_SWITCH, + _T(""), + OPTION_VERBOSE, + gettext_noop("generate verbose log messages"), + wxCMD_LINE_VAL_NONE, + 0x0 + }, +#endif // wxUSE_LOG + +#ifdef __WXUNIVERSAL__ + { + wxCMD_LINE_OPTION, + _T(""), + OPTION_THEME, + gettext_noop("specify the theme to use"), + wxCMD_LINE_VAL_STRING, + 0x0 + }, +#endif // __WXUNIVERSAL__ + +#if defined(__WXMGL__) + // VS: this is not specific to wxMGL, all fullscreen (framebuffer) ports + // should provide this option. That's why it is in common/appcmn.cpp + // and not mgl/app.cpp + { + wxCMD_LINE_OPTION, + _T(""), + OPTION_MODE, + gettext_noop("specify display mode to use (e.g. 640x480-16)"), + wxCMD_LINE_VAL_STRING, + 0x0 + }, +#endif // __WXMGL__ + + // terminator + { + wxCMD_LINE_NONE, + _T(""), + _T(""), + _T(""), + wxCMD_LINE_VAL_NONE, + 0x0 + } + }; + + parser.SetDesc(cmdLineDesc); +} + +bool wxAppBase::OnCmdLineParsed(wxCmdLineParser& parser) +{ +#if wxUSE_LOG + if ( parser.Found(OPTION_VERBOSE) ) + { + wxLog::SetVerbose(TRUE); } +#endif // wxUSE_LOG + +#ifdef __WXUNIVERSAL__ + wxString themeName; + if ( parser.Found(OPTION_THEME, &themeName) ) + { + wxTheme *theme = wxTheme::Create(themeName); + if ( !theme ) + { + wxLogError(_("Unsupported theme '%s'."), themeName.c_str()); + return FALSE; + } + + // Delete the defaultly created theme and set the new theme. + delete wxTheme::Get(); + wxTheme::Set(theme); + } +#endif // __WXUNIVERSAL__ + +#if defined(__WXMGL__) + wxString modeDesc; + if ( parser.Found(OPTION_MODE, &modeDesc) ) + { + unsigned w, h, bpp; + if ( wxSscanf(modeDesc.c_str(), _T("%ux%u-%u"), &w, &h, &bpp) != 3 ) + { + wxLogError(_("Invalid display mode specification '%s'."), modeDesc.c_str()); + return FALSE; + } + + if ( !SetDisplayMode(wxDisplayModeInfo(w, h, bpp)) ) + return FALSE; + } +#endif // __WXMGL__ + + return TRUE; } +bool wxAppBase::OnCmdLineHelp(wxCmdLineParser& parser) +{ + parser.Usage(); + + return FALSE; +} + +bool wxAppBase::OnCmdLineError(wxCmdLineParser& parser) +{ + parser.Usage(); + + return FALSE; +} + +#endif // wxUSE_CMDLINE_PARSER + +// ---------------------------------------------------------------------------- +// debugging support +// ---------------------------------------------------------------------------- + +/* static */ +bool wxAppBase::CheckBuildOptions(const wxBuildOptions& opts) +{ +#define wxCMP(what) (what == opts.m_ ## what) + + bool +#ifdef __WXDEBUG__ + isDebug = TRUE; +#else + isDebug = FALSE; +#endif + + int verMaj = wxMAJOR_VERSION, + verMin = wxMINOR_VERSION; + + if ( !(wxCMP(isDebug) && wxCMP(verMaj) && wxCMP(verMin)) ) + { + wxString msg; + wxString libDebug, progDebug; + + if (isDebug) + libDebug = wxT("debug"); + else + libDebug = wxT("no debug"); + + if (opts.m_isDebug) + progDebug = wxT("debug"); + else + progDebug = wxT("no debug"); + + msg.Printf(_T("Mismatch between the program and library build versions detected.\nThe library used %d.%d (%s), and your program used %d.%d (%s)."), + verMaj, verMin, libDebug.c_str(), opts.m_verMaj, opts.m_verMin, progDebug.c_str()); + + wxLogFatalError(msg); + + // normally wxLogFatalError doesn't return + return FALSE; + } +#undef wxCMP + + return TRUE; +} + +#ifdef __WXDEBUG__ + +static void LINKAGEMODE SetTraceMasks() +{ +#if wxUSE_LOG + wxString mask; + if ( wxGetEnv(wxT("WXTRACE"), &mask) ) + { + wxStringTokenizer tkn(mask, wxT(",")); + while ( tkn.HasMoreTokens() ) + wxLog::AddTraceMask(tkn.GetNextToken()); + } +#endif // wxUSE_LOG +} + +// wxASSERT() helper +bool wxAssertIsEqual(int x, int y) +{ + return x == y; +} + +// break into the debugger +void wxTrap() +{ +#if defined(__WXMSW__) && !defined(__WXMICROWIN__) + DebugBreak(); +#elif defined(__WXMAC__) && !defined(__DARWIN__) +#if __powerc + Debugger(); +#else + SysBreak(); +#endif +#elif defined(__UNIX__) + raise(SIGTRAP); +#else + // TODO +#endif // Win/Unix +} + + +void wxAssert(int cond, + const wxChar *szFile, + int nLine, + const wxChar *szCond, + const wxChar *szMsg) +{ + if ( !cond ) + wxOnAssert(szFile, nLine, szCond, szMsg); +} + +// show the assert modal dialog +static +void ShowAssertDialog(const wxChar *szFile, + int nLine, + const wxChar *szCond, + const wxChar *szMsg) +{ + // this variable can be set to true to suppress "assert failure" messages + static bool s_bNoAsserts = FALSE; + + wxChar szBuf[4096]; + + // make life easier for people using VC++ IDE by using this format: like + // this, clicking on the message will take us immediately to the place of + // the failed assert + wxSnprintf(szBuf, WXSIZEOF(szBuf), + wxT("%s(%d): assert \"%s\" failed"), + szFile, nLine, szCond); + + if ( szMsg != NULL ) + { + wxStrcat(szBuf, wxT(": ")); + wxStrcat(szBuf, szMsg); + } + else // no message given + { + wxStrcat(szBuf, wxT(".")); + } + +#if wxUSE_THREADS + // if we are not in the main thread, + // output the assert directly and trap since dialogs cannot be displayed + if (!wxThread::IsMain()) { + wxStrcat(szBuf, wxT(" [in child thread]")); +#if defined(__WXMSW__) && !defined(__WXMICROWIN__) + wxStrcat(szBuf, wxT("\r\n")); + OutputDebugString(szBuf); +#else + // send to stderr + wxFprintf(stderr, wxT("%s\n"), szBuf); + fflush(stderr); +#endif + // He-e-e-e-elp!! we're asserting in a child thread + wxTrap(); + } +#endif // wxUSE_THREADS + + if ( !s_bNoAsserts ) + { + // send it to the normal log destination + wxLogDebug(szBuf); + +#if (wxUSE_GUI && wxUSE_MSGDLG) || defined(__WXMSW__) + // this message is intentionally not translated - it is for + // developpers only + wxStrcat(szBuf, wxT("\nDo you want to stop the program?\nYou can also choose [Cancel] to suppress further warnings.")); + + // use the native message box if available: this is more robust than + // using our own +#if defined(__WXMSW__) && !defined(__WXMICROWIN__) + switch ( ::MessageBox(NULL, szBuf, _T("Debug"), + MB_YESNOCANCEL | MB_ICONSTOP ) ) + { + case IDYES: + wxTrap(); + break; + + case IDCANCEL: + s_bNoAsserts = TRUE; + break; + + //case IDNO: nothing to do + } +#else // !MSW + switch ( wxMessageBox(szBuf, wxT("Debug"), + wxYES_NO | wxCANCEL | wxICON_STOP ) ) + { + case wxYES: + wxTrap(); + break; + + case wxCANCEL: + s_bNoAsserts = TRUE; + break; + + //case wxNO: nothing to do + } +#endif // GUI or MSW + +#else // !GUI + wxTrap(); +#endif // GUI/!GUI + } +} + +// this function is called when an assert fails +void wxOnAssert(const wxChar *szFile, + int nLine, + const wxChar *szCond, + const wxChar *szMsg) +{ + // FIXME MT-unsafe + static bool s_bInAssert = FALSE; + + if ( s_bInAssert ) + { + // He-e-e-e-elp!! we're trapped in endless loop + wxTrap(); + + s_bInAssert = FALSE; + + return; + } + + s_bInAssert = TRUE; + + if ( !wxTheApp ) + { + // by default, show the assert dialog box - we can't customize this + // behaviour + ShowAssertDialog(szFile, nLine, szCond, szMsg); + } + else + { + // let the app process it as it wants + wxTheApp->OnAssert(szFile, nLine, szCond, szMsg); + } + + s_bInAssert = FALSE; +} + +void wxAppBase::OnAssert(const wxChar *file, + int line, + const wxChar *cond, + const wxChar *msg) +{ + ShowAssertDialog(file, line, cond, msg); +} + +#endif //WXDEBUG +