X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7beba2fc73283f5b750227459da57e66bcd475f5..6cab4fcac7fe26d9ae5a1d29066e0893d689bb38:/src/common/appcmn.cpp diff --git a/src/common/appcmn.cpp b/src/common/appcmn.cpp index ee097b6b70..afb51d63c8 100644 --- a/src/common/appcmn.cpp +++ b/src/common/appcmn.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: common/appcmn.cpp +// Name: src/common/appcmn.cpp // Purpose: wxAppBase methods common to all platforms // Author: Vadim Zeitlin // Modified by: @@ -17,10 +17,6 @@ // headers // --------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "appbase.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -30,48 +26,518 @@ #ifndef WX_PRECOMP #include "wx/app.h" - #include "wx/list.h" + #include "wx/window.h" + #include "wx/bitmap.h" + #include "wx/log.h" + #include "wx/msgdlg.h" + #include "wx/confbase.h" + #include "wx/utils.h" + #include "wx/wxcrtvararg.h" #endif +#include "wx/apptrait.h" +#include "wx/cmdline.h" +#include "wx/msgout.h" #include "wx/thread.h" -#include "wx/confbase.h" +#include "wx/vidmode.h" -// =========================================================================== -// implementation -// =========================================================================== +#ifdef __WXDEBUG__ + #if wxUSE_STACKWALKER + #include "wx/stackwalk.h" + #endif // wxUSE_STACKWALKER +#endif // __WXDEBUG__ -// --------------------------------------------------------------------------- -// wxAppBase +#if defined(__WXMSW__) + #include "wx/msw/private.h" // includes windows.h for LOGFONT +#endif + +#if wxUSE_FONTMAP + #include "wx/fontmap.h" +#endif // wxUSE_FONTMAP + +// DLL options compatibility check: +#include "wx/build.h" +WX_CHECK_BUILD_OPTIONS("wxCore") + +WXDLLIMPEXP_DATA_CORE(wxList) wxPendingDelete; + +// ============================================================================ +// wxAppBase implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// initialization +// ---------------------------------------------------------------------------- + +wxAppBase::wxAppBase() +{ + m_topWindow = NULL; + + m_useBestVisual = false; + m_forceTrueColour = false; + + m_isActive = true; + + m_isInsideYield = false; + + // 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; +} + +bool wxAppBase::Initialize(int& argcOrig, wxChar **argvOrig) +{ + if ( !wxAppConsole::Initialize(argcOrig, argvOrig) ) + return false; + + wxInitializeStockLists(); + + wxBitmap::InitStandardHandlers(); + + return true; +} + +// ---------------------------------------------------------------------------- +// cleanup +// ---------------------------------------------------------------------------- + +wxAppBase::~wxAppBase() +{ + // this destructor is required for Darwin +} + +void wxAppBase::CleanUp() +{ + // clean up all the pending objects + DeletePendingObjects(); + + // and any remaining TLWs (they remove themselves from wxTopLevelWindows + // when destroyed, so iterate until none are left) + while ( !wxTopLevelWindows.empty() ) + { + // do not use Destroy() here as it only puts the TLW in pending list + // but we want to delete them now + delete wxTopLevelWindows.GetFirst()->GetData(); + } + + // undo everything we did in Initialize() above + wxBitmap::CleanUpHandlers(); + + wxStockGDI::DeleteAll(); + + wxDeleteStockLists(); + + delete wxTheColourDatabase; + wxTheColourDatabase = NULL; + + wxAppConsole::CleanUp(); +} + +// ---------------------------------------------------------------------------- +// various accessors // ---------------------------------------------------------------------------- -void wxAppBase::ProcessPendingEvents() +wxWindow* wxAppBase::GetTopWindow() const +{ + wxWindow* window = m_topWindow; + if (window == NULL && wxTopLevelWindows.GetCount() > 0) + window = wxTopLevelWindows.GetFirst()->GetData(); + return window; +} + +wxVideoMode wxAppBase::GetDisplayMode() const +{ + return wxVideoMode(); +} + +wxLayoutDirection wxAppBase::GetLayoutDirection() const +{ +#if wxUSE_INTL + const wxLocale *const locale = wxGetLocale(); + if ( locale ) + { + const wxLanguageInfo *const + info = wxLocale::GetLanguageInfo(locale->GetLanguage()); + + if ( info ) + return info->LayoutDirection; + } +#endif // wxUSE_INTL + + // we don't know + return wxLayout_Default; +} + +#if wxUSE_CMDLINE_PARSER + +// ---------------------------------------------------------------------------- +// GUI-specific command line options handling +// ---------------------------------------------------------------------------- + +#define OPTION_THEME "theme" +#define OPTION_MODE "mode" + +void wxAppBase::OnInitCmdLine(wxCmdLineParser& parser) +{ + // first add the standard non GUI options + wxAppConsole::OnInitCmdLine(parser); + + // the standard command line options + static const wxCmdLineEntryDesc cmdLineGUIDesc[] = + { +#ifdef __WXUNIVERSAL__ + { + wxCMD_LINE_OPTION, + NULL, + 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, + NULL, + OPTION_MODE, + gettext_noop("specify display mode to use (e.g. 640x480-16)"), + wxCMD_LINE_VAL_STRING, + 0x0 + }, +#endif // __WXMGL__ + + // terminator + wxCMD_LINE_DESC_END + }; + + parser.SetDesc(cmdLineGUIDesc); +} + +bool wxAppBase::OnCmdLineParsed(wxCmdLineParser& parser) +{ +#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(wxVideoMode(w, h, bpp)) ) + return false; + } +#endif // __WXMGL__ + + return wxAppConsole::OnCmdLineParsed(parser); +} + +#endif // wxUSE_CMDLINE_PARSER + +// ---------------------------------------------------------------------------- +// OnXXX() hooks +// ---------------------------------------------------------------------------- + +bool wxAppBase::OnInitGui() +{ +#ifdef __WXUNIVERSAL__ + if ( !wxTheme::Get() && !wxTheme::CreateDefault() ) + return false; +#endif // __WXUNIVERSAL__ + + return true; +} + +int wxAppBase::OnRun() { - // ensure that we're the only thread to modify the pending events list - wxCRIT_SECT_LOCKER(locker, wxPendingEventsLocker); + // 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 wxAppConsole::OnRun(); +} + +int wxAppBase::OnExit() +{ +#ifdef __WXUNIVERSAL__ + delete wxTheme::Set(NULL); +#endif // __WXUNIVERSAL__ + + return wxAppConsole::OnExit(); +} + +wxAppTraits *wxAppBase::CreateTraits() +{ + return new wxGUIAppTraits; +} - if ( !wxPendingEvents ) +// ---------------------------------------------------------------------------- +// misc +// ---------------------------------------------------------------------------- + +void wxAppBase::SetActive(bool active, wxWindow * WXUNUSED(lastFocus)) +{ + if ( active == m_isActive ) return; - // iterate until the list becomes empty - wxNode *node = wxPendingEvents->First(); + m_isActive = active; + + wxActivateEvent event(wxEVT_ACTIVATE_APP, active); + event.SetEventObject(this); + + (void)ProcessEvent(event); +} + +// ---------------------------------------------------------------------------- +// idle handling +// ---------------------------------------------------------------------------- + +void wxAppBase::DeletePendingObjects() +{ + wxList::compatibility_iterator node = wxPendingDelete.GetFirst(); while (node) { - wxEvtHandler *handler = (wxEvtHandler *)node->Data(); + wxObject *obj = node->GetData(); + + // remove it from the list first so that if we get back here somehow + // during the object deletion (e.g. wxYield called from its dtor) we + // wouldn't try to delete it the second time + if ( wxPendingDelete.Member(obj) ) + wxPendingDelete.Erase(node); - handler->ProcessPendingEvents(); + delete obj; - delete node; - node = wxPendingEvents->First(); + // Deleting one object may have deleted other pending + // objects, so start from beginning of list again. + node = wxPendingDelete.GetFirst(); } } -int wxAppBase::OnExit() +// Returns true if more time is needed. +bool wxAppBase::ProcessIdle() +{ + // call the base class version first, it will process the pending events + // (which should be done before the idle events generation) and send the + // idle event to wxTheApp itself + bool needMore = wxAppConsoleBase::ProcessIdle(); + wxIdleEvent event; + wxWindowList::compatibility_iterator node = wxTopLevelWindows.GetFirst(); + while (node) + { + wxWindow* win = node->GetData(); + if (SendIdleEvents(win, event)) + needMore = true; + node = node->GetNext(); + } + + // 'Garbage' collection of windows deleted with Close(). + DeletePendingObjects(); + +#if wxUSE_LOG + // flush the logged messages if any + wxLog::FlushActive(); +#endif + + wxUpdateUIEvent::ResetUpdateTime(); + + return needMore; +} + +// Send idle event to window and all subwindows +bool wxAppBase::SendIdleEvents(wxWindow* win, wxIdleEvent& event) +{ + bool needMore = false; + + win->OnInternalIdle(); + + // should we send idle event to this window? + if ( wxIdleEvent::GetMode() == wxIDLE_PROCESS_ALL || + win->HasExtraStyle(wxWS_EX_PROCESS_IDLE) ) + { + event.SetEventObject(win); + win->HandleWindowEvent(event); + + if (event.MoreRequested()) + needMore = true; + } + wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst(); + while ( node ) + { + wxWindow *child = node->GetData(); + if (SendIdleEvents(child, event)) + needMore = true; + + node = node->GetNext(); + } + + return needMore; +} + +// ---------------------------------------------------------------------------- +// wxGUIAppTraitsBase +// ---------------------------------------------------------------------------- + +#if wxUSE_LOG + +wxLog *wxGUIAppTraitsBase::CreateLogTarget() { -#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 +#if wxUSE_LOGGUI + return new wxLogGui; +#else + // we must have something! + return new wxLogStderr; +#endif +} + +#endif // wxUSE_LOG - return 0; +wxMessageOutput *wxGUIAppTraitsBase::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 (!) + // stderr if available and message box otherwise on others + // (currently stderr only Windows if app running from console) +#ifdef __UNIX__ + return new wxMessageOutputStderr; +#else // !__UNIX__ + // wxMessageOutputMessageBox doesn't work under Motif + #ifdef __WXMOTIF__ + return new wxMessageOutputLog; + #elif wxUSE_MSGDLG + return new wxMessageOutputBest(wxMSGOUT_PREFER_STDERR); + #else + return new wxMessageOutputStderr; + #endif +#endif // __UNIX__/!__UNIX__ } + +#if wxUSE_FONTMAP + +wxFontMapper *wxGUIAppTraitsBase::CreateFontMapper() +{ + return new wxFontMapper; +} + +#endif // wxUSE_FONTMAP + +wxRendererNative *wxGUIAppTraitsBase::CreateRenderer() +{ + // use the default native renderer by default + return NULL; +} + +#ifdef __WXDEBUG__ + +bool wxGUIAppTraitsBase::ShowAssertDialog(const wxString& msg) +{ + // under MSW we prefer to use the base class version using ::MessageBox() + // even if wxMessageBox() is available because it has less chances to + // double fault our app than our wxMessageBox() + // + // under DFB the message dialog is not always functional right now + // + // and finally we can't use wxMessageBox() if it wasn't compiled in, of + // course +#if defined(__WXMSW__) || defined(__WXDFB__) || !wxUSE_MSGDLG + return wxAppTraitsBase::ShowAssertDialog(msg); +#else // wxUSE_MSGDLG + wxString msgDlg = msg; + +#if wxUSE_STACKWALKER + // on Unix stack frame generation may take some time, depending on the + // size of the executable mainly... warn the user that we are working + wxFprintf(stderr, wxT("[Debug] Generating a stack trace... please wait")); + fflush(stderr); + + const wxString stackTrace = GetAssertStackTrace(); + if ( !stackTrace.empty() ) + msgDlg << _T("\n\nCall stack:\n") << stackTrace; +#endif // wxUSE_STACKWALKER + + // this message is intentionally not translated -- it is for + // developpers only + msgDlg += wxT("\nDo you want to stop the program?\n") + wxT("You can also choose [Cancel] to suppress ") + wxT("further warnings."); + + switch ( wxMessageBox(msgDlg, wxT("wxWidgets Debug Alert"), + wxYES_NO | wxCANCEL | wxICON_STOP ) ) + { + case wxYES: + wxTrap(); + break; + + case wxCANCEL: + // no more asserts + return true; + + //case wxNO: nothing to do + } + + return false; +#endif // !wxUSE_MSGDLG/wxUSE_MSGDLG +} + +#endif // __WXDEBUG__ + +bool wxGUIAppTraitsBase::HasStderr() +{ + // we consider that under Unix stderr always goes somewhere, even if the + // user doesn't always see it under GUI desktops +#ifdef __UNIX__ + return true; +#else + return false; +#endif +} + +void wxGUIAppTraitsBase::ScheduleForDestroy(wxObject *object) +{ + if ( !wxPendingDelete.Member(object) ) + wxPendingDelete.Append(object); +} + +void wxGUIAppTraitsBase::RemoveFromPendingDelete(wxObject *object) +{ + wxPendingDelete.DeleteObject(object); +} +