X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b35191eb54e6f307de8406f4f246d8f386fac7bf..96c9640205933ad0673d5af2c96af0816c50160c:/src/msw/app.cpp?ds=inline diff --git a/src/msw/app.cpp b/src/msw/app.cpp index 8f9782d2d1..8df236020f 100644 --- a/src/msw/app.cpp +++ b/src/msw/app.cpp @@ -1,12 +1,12 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: app.cpp +// Name: src/msw/app.cpp // Purpose: wxApp // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id$ -// Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Copyright: (c) Julian Smart +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // =========================================================================== @@ -17,10 +17,6 @@ // headers // --------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "app.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -29,6 +25,8 @@ #endif #ifndef WX_PRECOMP + #include "wx/msw/wrapcctl.h" + #include "wx/dynarray.h" #include "wx/frame.h" #include "wx/app.h" #include "wx/utils.h" @@ -42,32 +40,23 @@ #include "wx/dialog.h" #include "wx/msgdlg.h" #include "wx/intl.h" - #include "wx/dynarray.h" - #include "wx/wxchar.h" - #include "wx/icon.h" + #include "wx/crt.h" #include "wx/log.h" + #include "wx/module.h" #endif -#include "wx/cmdline.h" +#include "wx/apptrait.h" #include "wx/filename.h" -#include "wx/module.h" +#include "wx/dynlib.h" +#include "wx/evtloop.h" +#include "wx/thread.h" +#include "wx/scopeguard.h" +#include "wx/vector.h" #include "wx/msw/private.h" - -#if wxUSE_THREADS - #include "wx/thread.h" - - // define the array of MSG strutures - WX_DECLARE_OBJARRAY(MSG, wxMsgArray); - - #include "wx/arrimpl.cpp" - - WX_DEFINE_OBJARRAY(wxMsgArray); -#endif // wxUSE_THREADS - -#if wxUSE_WX_RESOURCES - #include "wx/resource.h" -#endif +#include "wx/msw/dc.h" +#include "wx/msw/ole/oleutils.h" +#include "wx/msw/private/timer.h" #if wxUSE_TOOLTIPS #include "wx/tooltip.h" @@ -75,12 +64,17 @@ // OLE is used for drag-and-drop, clipboard, OLE Automation..., but some // compilers don't support it (missing headers, libs, ...) -#if defined(__GNUWIN32_OLD__) || defined(__SC__) || defined(__SALFORDC__) +#if defined(__GNUWIN32_OLD__) || defined(__SYMANTEC__) #undef wxUSE_OLE #define wxUSE_OLE 0 #endif // broken compilers +#if defined(__POCKETPC__) || defined(__SMARTPHONE__) + #include + #include +#endif + #if wxUSE_OLE #include #endif @@ -88,1292 +82,984 @@ #include #include -#if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__) || defined(__WXMICROWIN__)) && !defined(__CYGWIN10__)) - #include -#endif - -#ifndef __WXMICROWIN__ -#include "wx/msw/msvcrt.h" -#endif - -// ---------------------------------------------------------------------------- -// conditional compilation -// ---------------------------------------------------------------------------- +#include "wx/msw/missing.h" -// The macro _WIN32_IE is defined by commctrl.h (unless it had already been -// defined before) and shows us what common control features are available -// during the compile time (it doesn't mean that they will be available during -// the run-time, use GetComCtl32Version() to test for them!). The possible -// values are: +// instead of including which is not part of the core SDK and not +// shipped at all with other compilers, we always define the parts of it we +// need here ourselves // -// 0x0200 for comctl32.dll 4.00 shipped with Win95/NT 4.0 -// 0x0300 4.70 IE 3.x -// 0x0400 4.71 IE 4.0 -// 0x0401 4.72 IE 4.01 and Win98 -// 0x0500 5.00 IE 5.x and NT 5.0 (Win2000) - -#ifndef _WIN32_IE - // minimal set of features by default - #define _WIN32_IE 0x0200 -#endif - -#if _WIN32_IE >= 0x0300 && \ - (!defined(__MINGW32__) || wxCHECK_W32API_VERSION( 2, 0 )) - #include +// NB: DLLVER_PLATFORM_WINDOWS will be defined if shlwapi.h had been somehow +// included already +#ifndef DLLVER_PLATFORM_WINDOWS + // hopefully we don't need to change packing as DWORDs should be already + // correctly aligned + struct DLLVERSIONINFO + { + DWORD cbSize; + DWORD dwMajorVersion; // Major version + DWORD dwMinorVersion; // Minor version + DWORD dwBuildNumber; // Build number + DWORD dwPlatformID; // DLLVER_PLATFORM_* + }; + + typedef HRESULT (CALLBACK* DLLGETVERSIONPROC)(DLLVERSIONINFO *); +#endif // defined(DLLVERSIONINFO) + +#ifndef ATTACH_PARENT_PROCESS + #define ATTACH_PARENT_PROCESS ((DWORD)-1) #endif // --------------------------------------------------------------------------- // global variables // --------------------------------------------------------------------------- -extern wxChar *wxBuffer; -extern wxList WXDLLEXPORT wxPendingDelete; -#ifndef __WXMICROWIN__ +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) extern void wxSetKeyboardHook(bool doIt); #endif -MSG s_currentMsg; -wxApp *wxTheApp = NULL; +// because of mingw32 4.3 bug this struct can't be inside the namespace below: +// see http://article.gmane.org/gmane.comp.lib.wxwidgets.devel/110282 +struct ClassRegInfo +{ + ClassRegInfo(const wxChar *name) + : regname(name), + regnameNR(regname + wxApp::GetNoRedrawClassSuffix()) + { + } + + // the name of the registered class with and without CS_[HV]REDRAW styles + wxString regname; + wxString regnameNR; +}; -// NB: all "NoRedraw" classes must have the same names as the "normal" classes -// with NR suffix - wxWindow::MSWCreate() supposes this -const wxChar *wxCanvasClassName = wxT("wxWindowClass"); -const wxChar *wxCanvasClassNameNR = wxT("wxWindowClassNR"); -const wxChar *wxMDIFrameClassName = wxT("wxMDIFrameClass"); -const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR"); -const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass"); -const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR"); +namespace +{ -HICON wxSTD_FRAME_ICON = (HICON) NULL; -HICON wxSTD_MDICHILDFRAME_ICON = (HICON) NULL; -HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL; +wxVector gs_regClassesInfo; -HICON wxDEFAULT_FRAME_ICON = (HICON) NULL; -HICON wxDEFAULT_MDICHILDFRAME_ICON = (HICON) NULL; -HICON wxDEFAULT_MDIPARENTFRAME_ICON = (HICON) NULL; +} // anonymous namespace -HBRUSH wxDisableButtonBrush = (HBRUSH) 0; +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- LRESULT WXDLLEXPORT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM); -// FIXME wxUSE_ON_FATAL_EXCEPTION is only supported for VC++ now because it -// needs compiler support for Win32 SEH. Others (especially Borland) -// probably have it too, but I'm not sure about how it works -// JACS: get 'Cannot use __try in functions that require unwinding -// in Unicode mode, so disabling. -#if !defined(__VISUALC__) || defined(__WIN16__) || defined(UNICODE) - #undef wxUSE_ON_FATAL_EXCEPTION - #define wxUSE_ON_FATAL_EXCEPTION 0 -#endif // VC++ - -#if wxUSE_ON_FATAL_EXCEPTION - static bool gs_handleExceptions = FALSE; -#endif - // =========================================================================== -// implementation +// wxGUIAppTraits implementation // =========================================================================== -// --------------------------------------------------------------------------- -// wxApp -// --------------------------------------------------------------------------- - -IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) - -BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) - EVT_IDLE(wxApp::OnIdle) - EVT_END_SESSION(wxApp::OnEndSession) - EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession) -END_EVENT_TABLE() - -//// Initialize -bool wxApp::Initialize() +// private class which we use to pass parameters from BeforeChildWaitLoop() to +// AfterChildWaitLoop() +struct ChildWaitLoopData { - // the first thing to do is to check if we're trying to run an Unicode - // program under Win9x w/o MSLU emulation layer - if so, abort right now - // as it has no chance to work -#if wxUSE_UNICODE && !wxUSE_UNICODE_MSLU - if ( wxGetOsVersion() != wxWINDOWS_NT ) + ChildWaitLoopData(wxWindowDisabler *wd_, wxWindow *winActive_) { - // note that we can use MessageBoxW() as it's implemented even under - // Win9x - OTOH, we can't use wxGetTranslation() because the file APIs - // used by wxLocale are not - ::MessageBox - ( - NULL, - _T("This program uses Unicode and requires Windows NT/2000/XP.\nProgram aborted."), - _T("wxWindows Fatal Error"), - MB_ICONERROR | MB_OK - ); - - return FALSE; + wd = wd_; + winActive = winActive_; } -#endif // wxUSE_UNICODE && !wxUSE_UNICODE_MSLU - - wxBuffer = new wxChar[1500]; // FIXME - - wxClassInfo::InitializeClasses(); - -#if wxUSE_THREADS - wxPendingEventsLocker = new wxCriticalSection; -#endif - wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING); - wxTheColourDatabase->Initialize(); + wxWindowDisabler *wd; + wxWindow *winActive; +}; - wxInitializeStockLists(); - wxInitializeStockObjects(); - -#if wxUSE_WX_RESOURCES - wxInitializeResourceSystem(); -#endif - - wxBitmap::InitStandardHandlers(); - -#if defined(__WIN95__) && !defined(__WXMICROWIN__) - InitCommonControls(); -#endif // __WIN95__ - -#if wxUSE_OLE || wxUSE_DRAG_AND_DROP - -#ifdef __WIN16__ - // for OLE, enlarge message queue to be as large as possible - int iMsg = 96; - while (!SetMessageQueue(iMsg) && (iMsg -= 8)) - ; -#endif // Win16 - -#if wxUSE_OLE - // we need to initialize OLE library - if ( FAILED(::OleInitialize(NULL)) ) - wxLogError(_("Cannot initialize OLE")); -#endif - -#endif // wxUSE_OLE - -#if wxUSE_CTL3D - if (!Ctl3dRegister(wxhInstance)) - wxLogError(wxT("Cannot register CTL3D")); - - Ctl3dAutoSubclass(wxhInstance); -#endif // wxUSE_CTL3D - - // VZ: these icons are not in wx.rc anyhow (but should they?)! -#if 0 - wxSTD_FRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_FRAME")); - wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_MDIPARENTFRAME")); - wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, wxT("wxSTD_MDICHILDFRAME")); - - wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_FRAME")); - wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_MDIPARENTFRAME")); - wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, wxT("wxDEFAULT_MDICHILDFRAME")); -#endif // 0 - - RegisterWindowClasses(); - -#ifndef __WXMICROWIN__ - // Create the brush for disabling bitmap buttons - - LOGBRUSH lb; - lb.lbStyle = BS_PATTERN; - lb.lbColor = 0; - lb.lbHatch = (int)LoadBitmap( wxhInstance, wxT("wxDISABLE_BUTTON_BITMAP") ); - if ( lb.lbHatch ) - { - wxDisableButtonBrush = ::CreateBrushIndirect( & lb ); - ::DeleteObject( (HGDIOBJ)lb.lbHatch ); - } - //else: wxWindows resources are probably not linked in -#endif +void *wxGUIAppTraits::BeforeChildWaitLoop() +{ + /* + We use a dirty hack here to disable all application windows (which we + must do because otherwise the calls to wxYield() could lead to some very + unexpected reentrancies in the users code) but to avoid losing + focus/activation entirely when the child process terminates which would + happen if we simply disabled everything using wxWindowDisabler. Indeed, + remember that Windows will never activate a disabled window and when the + last childs window is closed and Windows looks for a window to activate + all our windows are still disabled. There is no way to enable them in + time because we don't know when the childs windows are going to be + closed, so the solution we use here is to keep one special tiny frame + enabled all the time. Then when the child terminates it will get + activated and when we close it below -- after reenabling all the other + windows! -- the previously active window becomes activated again and + everything is ok. + */ + wxBeginBusyCursor(); + + // first disable all existing windows + wxWindowDisabler *wd = new wxWindowDisabler; + + // then create an "invisible" frame: it has minimal size, is positioned + // (hopefully) outside the screen and doesn't appear on the taskbar + wxWindow *winActive = new wxFrame + ( + wxTheApp->GetTopWindow(), + wxID_ANY, + wxEmptyString, + wxPoint(32600, 32600), + wxSize(1, 1), + wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR + ); + winActive->Show(); + + return new ChildWaitLoopData(wd, winActive); +} -#if wxUSE_PENWINDOWS - wxRegisterPenWin(); -#endif +void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig) +{ + wxEndBusyCursor(); - wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100); + ChildWaitLoopData * const data = (ChildWaitLoopData *)dataOrig; - // This is to foil optimizations in Visual C++ that throw out dummy.obj. - // PLEASE DO NOT ALTER THIS. -#if defined(__VISUALC__) && defined(__WIN16__) && !defined(WXMAKINGDLL) - extern char wxDummyChar; - if (wxDummyChar) wxDummyChar++; -#endif + delete data->wd; -#ifndef __WXMICROWIN__ - wxSetKeyboardHook(TRUE); -#endif + // finally delete the dummy frame and, as wd has been already destroyed and + // the other windows reenabled, the activation is going to return to the + // window which had had it before + data->winActive->Destroy(); - wxModule::RegisterModules(); - if (!wxModule::InitializeModules()) - return FALSE; - return TRUE; + // also delete the temporary data object itself + delete data; } -// --------------------------------------------------------------------------- -// RegisterWindowClasses -// --------------------------------------------------------------------------- - -// TODO we should only register classes really used by the app. For this it -// would be enough to just delay the class registration until an attempt -// to create a window of this class is made. -bool wxApp::RegisterWindowClasses() +#if wxUSE_THREADS +bool wxGUIAppTraits::DoMessageFromThreadWait() { - WNDCLASS wndclass; - wxZeroMemory(wndclass); - - // for each class we register one with CS_(V|H)REDRAW style and one - // without for windows created with wxNO_FULL_REDRAW_ON_REPAINT flag - static const long styleNormal = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS; - static const long styleNoRedraw = CS_DBLCLKS; - - // the fields which are common to all classes - wndclass.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass.hInstance = wxhInstance; - wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW); - - // Register the frame window class. - wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE + 1); - wndclass.lpszClassName = wxCanvasClassName; - wndclass.style = styleNormal; - - if ( !RegisterClass(&wndclass) ) + // we should return false only if the app should exit, i.e. only if + // Dispatch() determines that the main event loop should terminate + wxEventLoopBase * const evtLoop = wxEventLoop::GetActive(); + if ( !evtLoop || !evtLoop->Pending() ) { - wxLogLastError(wxT("RegisterClass(frame)")); + // no events means no quit event + return true; } - // "no redraw" frame - wndclass.lpszClassName = wxCanvasClassNameNR; - wndclass.style = styleNoRedraw; + return evtLoop->Dispatch(); +} - if ( !RegisterClass(&wndclass) ) +DWORD wxGUIAppTraits::WaitForThread(WXHANDLE hThread, int flags) +{ + // We only ever dispatch messages from the main thread and, additionally, + // even from the main thread we shouldn't wait for the message if we don't + // have a running event loop as we would never remove them from the message + // queue then and so we would enter an infinite loop as + // MsgWaitForMultipleObjects() keeps returning WAIT_OBJECT_0 + 1. + if ( flags == wxTHREAD_WAIT_BLOCK || + !wxIsMainThread() || + !wxEventLoop::GetActive() ) { - wxLogLastError(wxT("RegisterClass(no redraw frame)")); + // Simple blocking wait. + return DoSimpleWaitForThread(hThread); } - // Register the MDI frame window class. - wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves - wndclass.lpszClassName = wxMDIFrameClassName; - wndclass.style = styleNormal; - - if ( !RegisterClass(&wndclass) ) - { - wxLogLastError(wxT("RegisterClass(MDI parent)")); - } + return ::MsgWaitForMultipleObjects + ( + 1, // number of objects to wait for + (HANDLE *)&hThread, // the objects + false, // wait for any objects, not all + INFINITE, // no timeout + QS_ALLINPUT | // return as soon as there are any events + QS_ALLPOSTMESSAGE + ); +} +#endif // wxUSE_THREADS - // "no redraw" MDI frame - wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw; - wndclass.style = styleNoRedraw; +wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const +{ + OSVERSIONINFO info; + wxZeroMemory(info); - if ( !RegisterClass(&wndclass) ) + // on Windows, the toolkit version is the same of the OS version + // as Windows integrates the OS kernel with the GUI toolkit. + info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); + if ( ::GetVersionEx(&info) ) { - wxLogLastError(wxT("RegisterClass(no redraw MDI parent frame)")); + if ( majVer ) + *majVer = info.dwMajorVersion; + if ( minVer ) + *minVer = info.dwMinorVersion; } - // Register the MDI child frame window class. - wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); - wndclass.lpszClassName = wxMDIChildFrameClassName; - wndclass.style = styleNormal; +#if defined(__WXHANDHELD__) || defined(__WXWINCE__) + return wxPORT_WINCE; +#else + return wxPORT_MSW; +#endif +} - if ( !RegisterClass(&wndclass) ) - { - wxLogLastError(wxT("RegisterClass(MDI child)")); - } +#if wxUSE_TIMER - // "no redraw" MDI child frame - wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw; - wndclass.style = styleNoRedraw; +wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer) +{ + return new wxMSWTimerImpl(timer); +} - if ( !RegisterClass(&wndclass) ) - { - wxLogLastError(wxT("RegisterClass(no redraw MDI child)")); - } +#endif // wxUSE_TIMER - return TRUE; +wxEventLoopBase* wxGUIAppTraits::CreateEventLoop() +{ + return new wxEventLoop; } // --------------------------------------------------------------------------- -// UnregisterWindowClasses +// Stuff for using console from the GUI applications // --------------------------------------------------------------------------- -bool wxApp::UnregisterWindowClasses() -{ - bool retval = TRUE; - -#ifndef __WXMICROWIN__ - // MDI frame window class. - if ( !::UnregisterClass(wxMDIFrameClassName, wxhInstance) ) - { - wxLogLastError(wxT("UnregisterClass(MDI parent)")); +#ifndef __WXWINCE__ - retval = FALSE; - } +#if wxUSE_DYNLIB_CLASS - // "no redraw" MDI frame - if ( !::UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) ) - { - wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)")); +#include - retval = FALSE; - } +namespace +{ - // MDI child frame window class. - if ( !::UnregisterClass(wxMDIChildFrameClassName, wxhInstance) ) - { - wxLogLastError(wxT("UnregisterClass(MDI child)")); +/* + Helper class to manipulate console from a GUI app. - retval = FALSE; - } + Notice that console output is available in the GUI app only if: + - AttachConsole() returns TRUE (which means it never works under pre-XP) + - we have a valid STD_ERROR_HANDLE + - command history hasn't been changed since our startup - // "no redraw" MDI child frame - if ( !::UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) ) + To check if all these conditions are verified, you need to simple call + IsOkToUse(). It will check the first two conditions above the first time it + is called (and if this fails, the subsequent calls will return immediately) + and also recheck the last one every time it is called. + */ +class wxConsoleStderr +{ +public: + // default ctor does nothing, call Init() before using this class + wxConsoleStderr() { - wxLogLastError(wxT("UnregisterClass(no redraw MDI child)")); + m_hStderr = INVALID_HANDLE_VALUE; + m_historyLen = + m_dataLen = + m_dataLine = 0; - retval = FALSE; + m_ok = -1; } - // canvas class name - if ( !::UnregisterClass(wxCanvasClassName, wxhInstance) ) + ~wxConsoleStderr() { - wxLogLastError(wxT("UnregisterClass(canvas)")); - - retval = FALSE; + if ( m_hStderr != INVALID_HANDLE_VALUE ) + { + if ( !::FreeConsole() ) + { + wxLogLastError(wxT("FreeConsole")); + } + } } - if ( !::UnregisterClass(wxCanvasClassNameNR, wxhInstance) ) + // return true if we were successfully initialized and there had been no + // console activity which would interfere with our output since then + bool IsOkToUse() const { - wxLogLastError(wxT("UnregisterClass(no redraw canvas)")); - - retval = FALSE; - } -#endif // __WXMICROWIN__ - - return retval; -} - -// --------------------------------------------------------------------------- -// Convert Windows to argc, argv style -// --------------------------------------------------------------------------- - -void wxApp::ConvertToStandardCommandArgs(const char* lpCmdLine) -{ - // break the command line in words - wxArrayString args = - wxCmdLineParser::ConvertStringToArgs(wxConvertMB2WX(lpCmdLine)); - - // +1 here for the program name - argc = args.GetCount() + 1; - - // and +1 here for the terminating NULL - argv = new wxChar *[argc + 1]; - - argv[0] = new wxChar[260]; // 260 is MAX_PATH value from windef.h - ::GetModuleFileName(wxhInstance, argv[0], 260); - - // also set the app name from argv[0] - wxString name; - wxFileName::SplitPath(argv[0], NULL, &name, NULL); + if ( m_ok == -1 ) + { + wxConsoleStderr * const self = const_cast(this); + self->m_ok = self->DoInit(); - // but don't override the name already set by the user code, if any - if ( GetAppName().empty() ) - SetAppName(name); + // no need to call IsHistoryUnchanged() as we just initialized + // m_history anyhow + return m_ok == 1; + } - // copy all the other arguments to wxApp::argv[] - for ( int i = 1; i < argc; i++ ) - { - argv[i] = copystring(args[i - 1]); + return m_ok && IsHistoryUnchanged(); } - // argv[] must be NULL-terminated - argv[argc] = NULL; -} - -//// Cleans up any wxWindows internal structures left lying around - -void wxApp::CleanUp() -{ - //// COMMON CLEANUP - -#if wxUSE_LOG - // flush the logged messages if any and install a 'safer' log target: the - // default one (wxLogGui) can't be used after the resources are freed just - // below and the user suppliedo ne might be even more unsafe (using any - // wxWindows GUI function is unsafe starting from now) - wxLog::DontCreateOnDemand(); - // this will flush the old messages if any - delete wxLog::SetActiveTarget(new wxLogStderr); -#endif // wxUSE_LOG + // output the provided text on the console, return true if ok + bool Write(const wxString& text); - // One last chance for pending objects to be cleaned up - wxTheApp->DeletePendingObjects(); +private: + // called by Init() once only to do the real initialization + bool DoInit(); - wxModule::CleanUpModules(); + // retrieve the command line history into the provided buffer and return + // its length + int GetCommandHistory(wxWxCharBuffer& buf) const; -#if wxUSE_WX_RESOURCES - wxCleanUpResourceSystem(); + // check if the console history has changed + bool IsHistoryUnchanged() const; - // wxDefaultResourceTable->ClearTable(); -#endif - - wxDeleteStockObjects(); + int m_ok; // initially -1, set to true or false by Init() - // Destroy all GDI lists, etc. - wxDeleteStockLists(); + wxDynamicLibrary m_dllKernel32; - delete wxTheColourDatabase; - wxTheColourDatabase = NULL; + HANDLE m_hStderr; // console handle, if it's valid we must call + // FreeConsole() (even if m_ok != 1) - wxBitmap::CleanUpHandlers(); + wxWxCharBuffer m_history; // command history on startup + int m_historyLen; // length command history buffer - delete[] wxBuffer; - wxBuffer = NULL; + wxCharBuffer m_data; // data between empty line and cursor position + int m_dataLen; // length data buffer + int m_dataLine; // line offset - //// WINDOWS-SPECIFIC CLEANUP + typedef DWORD (WINAPI *GetConsoleCommandHistory_t)(LPTSTR sCommands, + DWORD nBufferLength, + LPCTSTR sExeName); + typedef DWORD (WINAPI *GetConsoleCommandHistoryLength_t)(LPCTSTR sExeName); -#ifndef __WXMICROWIN__ - wxSetKeyboardHook(FALSE); -#endif + GetConsoleCommandHistory_t m_pfnGetConsoleCommandHistory; + GetConsoleCommandHistoryLength_t m_pfnGetConsoleCommandHistoryLength; -#if wxUSE_PENWINDOWS - wxCleanUpPenWin(); -#endif + wxDECLARE_NO_COPY_CLASS(wxConsoleStderr); +}; - if (wxSTD_FRAME_ICON) - DestroyIcon(wxSTD_FRAME_ICON); - if (wxSTD_MDICHILDFRAME_ICON) - DestroyIcon(wxSTD_MDICHILDFRAME_ICON); - if (wxSTD_MDIPARENTFRAME_ICON) - DestroyIcon(wxSTD_MDIPARENTFRAME_ICON); +bool wxConsoleStderr::DoInit() +{ + HANDLE hStderr = ::GetStdHandle(STD_ERROR_HANDLE); - if (wxDEFAULT_FRAME_ICON) - DestroyIcon(wxDEFAULT_FRAME_ICON); - if (wxDEFAULT_MDICHILDFRAME_ICON) - DestroyIcon(wxDEFAULT_MDICHILDFRAME_ICON); - if (wxDEFAULT_MDIPARENTFRAME_ICON) - DestroyIcon(wxDEFAULT_MDIPARENTFRAME_ICON); + if ( hStderr == INVALID_HANDLE_VALUE || !hStderr ) + return false; - if ( wxDisableButtonBrush ) - ::DeleteObject( wxDisableButtonBrush ); + if ( !m_dllKernel32.Load(wxT("kernel32.dll")) ) + return false; -#if wxUSE_OLE - ::OleUninitialize(); -#endif + typedef BOOL (WINAPI *AttachConsole_t)(DWORD dwProcessId); + AttachConsole_t wxDL_INIT_FUNC(pfn, AttachConsole, m_dllKernel32); -#ifdef WXMAKINGDLL - // for an EXE the classes are unregistered when it terminates but DLL may - // be loaded several times (load/unload/load) into the same process in - // which case the registration will fail after the first time if we don't - // unregister the classes now - UnregisterWindowClasses(); -#endif // WXMAKINGDLL + if ( !pfnAttachConsole || !pfnAttachConsole(ATTACH_PARENT_PROCESS) ) + return false; -#if wxUSE_CTL3D - Ctl3dUnregister(wxhInstance); -#endif + // console attached, set m_hStderr now to ensure that we free it in the + // dtor + m_hStderr = hStderr; - delete wxWinHandleHash; + wxDL_INIT_FUNC_AW(m_pfn, GetConsoleCommandHistory, m_dllKernel32); + if ( !m_pfnGetConsoleCommandHistory ) + return false; - // GL: I'm annoyed ... I don't know where to put this and I don't want to - // create a module for that as it's part of the core. - delete wxPendingEvents; + wxDL_INIT_FUNC_AW(m_pfn, GetConsoleCommandHistoryLength, m_dllKernel32); + if ( !m_pfnGetConsoleCommandHistoryLength ) + return false; -#if wxUSE_THREADS - delete wxPendingEventsLocker; - // If we don't do the following, we get an apparent memory leak -#if wxUSE_VALIDATORS - ((wxEvtHandler&) wxDefaultValidator).ClearEventLocker(); -#endif // wxUSE_VALIDATORS -#endif // wxUSE_THREADS + // remember the current command history to be able to compare with it later + // in IsHistoryUnchanged() + m_historyLen = GetCommandHistory(m_history); + if ( !m_history ) + return false; - wxClassInfo::CleanUpClasses(); - delete wxTheApp; - wxTheApp = NULL; + // now find the first blank line above the current position + CONSOLE_SCREEN_BUFFER_INFO csbi; -#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT - // At this point we want to check if there are any memory - // blocks that aren't part of the wxDebugContext itself, - // as a special case. Then when dumping we need to ignore - // wxDebugContext, too. - if (wxDebugContext::CountObjectsLeft(TRUE) > 0) + if ( !::GetConsoleScreenBufferInfo(m_hStderr, &csbi) ) { - wxLogMessage(wxT("There were memory leaks.")); - wxDebugContext::Dump(); - wxDebugContext::PrintStatistics(); + wxLogLastError(wxT("GetConsoleScreenBufferInfo")); + return false; } - // wxDebugContext::SetStream(NULL, NULL); -#endif - -#if wxUSE_LOG - // do it as the very last thing because everything else can log messages - delete wxLog::SetActiveTarget(NULL); -#endif // wxUSE_LOG -} -//---------------------------------------------------------------------- -// Entry point helpers, used by wxPython -//---------------------------------------------------------------------- - -int WXDLLEXPORT wxEntryStart( int WXUNUSED(argc), char** WXUNUSED(argv) ) -{ - return wxApp::Initialize(); -} + COORD pos; + pos.X = 0; + pos.Y = csbi.dwCursorPosition.Y + 1; -int WXDLLEXPORT wxEntryInitGui() -{ - return wxTheApp->OnInitGui(); -} - -void WXDLLEXPORT wxEntryCleanup() -{ - wxApp::CleanUp(); -} - - -#if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL)) - -// temporarily disable this warning which would be generated in release builds -// because of __try -#ifdef __VISUALC__ - #pragma warning(disable: 4715) // not all control paths return a value -#endif // Visual C++ - -//---------------------------------------------------------------------- -// Main wxWindows entry point -//---------------------------------------------------------------------- -int wxEntry(WXHINSTANCE hInstance, - WXHINSTANCE WXUNUSED(hPrevInstance), - char *lpCmdLine, - int nCmdShow, - bool enterLoop) -{ - // do check for memory leaks on program exit - // (another useful flag is _CRTDBG_DELAY_FREE_MEM_DF which doesn't free - // deallocated memory which may be used to simulate low-memory condition) -#ifndef __WXMICROWIN__ - wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF); -#endif - -#ifdef __MWERKS__ -#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT - // This seems to be necessary since there are 'rogue' - // objects present at this point (perhaps global objects?) - // Setting a checkpoint will ignore them as far as the - // memory checking facility is concerned. - // Of course you may argue that memory allocated in globals should be - // checked, but this is a reasonable compromise. - wxDebugContext::SetCheckpoint(); -#endif -#endif - - // take everything into a try-except block to be able to call - // OnFatalException() if necessary -#if wxUSE_ON_FATAL_EXCEPTION - __try { -#endif - wxhInstance = (HINSTANCE) hInstance; - - if (!wxEntryStart(0,0)) - return 0; - - // create the application object or ensure that one already exists - if (!wxTheApp) + // we decide that a line is empty if first 4 characters are spaces + DWORD ret; + char buf[4]; + do + { + pos.Y--; + if ( !::ReadConsoleOutputCharacterA(m_hStderr, buf, WXSIZEOF(buf), + pos, &ret) ) { - // The app may have declared a global application object, but we recommend - // the IMPLEMENT_APP macro is used instead, which sets an initializer - // function for delayed, dynamic app object construction. - wxCHECK_MSG( wxApp::GetInitializerFunction(), 0, - wxT("No initializer - use IMPLEMENT_APP macro.") ); - - wxTheApp = (wxApp*) (*wxApp::GetInitializerFunction()) (); + wxLogLastError(wxT("ReadConsoleOutputCharacterA")); + return false; } + } while ( wxStrncmp(" ", buf, WXSIZEOF(buf)) != 0 ); - wxCHECK_MSG( wxTheApp, 0, wxT("You have to define an instance of wxApp!") ); + // calculate line offset and length of data + m_dataLine = csbi.dwCursorPosition.Y - pos.Y; + m_dataLen = m_dataLine*csbi.dwMaximumWindowSize.X + csbi.dwCursorPosition.X; - // save the WinMain() parameters - if (lpCmdLine) // MicroWindows passes NULL - wxTheApp->ConvertToStandardCommandArgs(lpCmdLine); - wxTheApp->m_nCmdShow = nCmdShow; - - // We really don't want timestamps by default, because it means - // we can't simply double-click on the error message and get to that - // line in the source. So VC++ at least, let's have a sensible default. -#ifdef __VISUALC__ - wxLog::SetTimestamp(NULL); -#endif - - // init the app - int retValue = wxEntryInitGui() && wxTheApp->OnInit() ? 0 : -1; - - if ( retValue == 0 ) + if ( m_dataLen > 0 ) + { + m_data.extend(m_dataLen); + if ( !::ReadConsoleOutputCharacterA(m_hStderr, m_data.data(), m_dataLen, + pos, &ret) ) { - if ( enterLoop ) - { - // run the main loop - retValue = wxTheApp->OnRun(); - } - else - { - // we want to initialize, but not run or exit immediately. - return 1; - } + wxLogLastError(wxT("ReadConsoleOutputCharacterA")); + return false; } - //else: app initialization failed, so we skipped OnRun() + } - wxWindow *topWindow = wxTheApp->GetTopWindow(); - if ( topWindow ) - { - // Forcibly delete the window. - if ( topWindow->IsKindOf(CLASSINFO(wxFrame)) || - topWindow->IsKindOf(CLASSINFO(wxDialog)) ) - { - topWindow->Close(TRUE); - wxTheApp->DeletePendingObjects(); - } - else - { - delete topWindow; - wxTheApp->SetTopWindow(NULL); - } - } + return true; +} - wxTheApp->OnExit(); +int wxConsoleStderr::GetCommandHistory(wxWxCharBuffer& buf) const +{ + // these functions are internal and may only be called by cmd.exe + static const wxChar *CMD_EXE = wxT("cmd.exe"); - wxEntryCleanup(); + const int len = m_pfnGetConsoleCommandHistoryLength(CMD_EXE); + if ( len ) + { + buf.extend(len); - return retValue; + int len2 = m_pfnGetConsoleCommandHistory(buf.data(), len, CMD_EXE); -#if wxUSE_ON_FATAL_EXCEPTION - } - __except ( gs_handleExceptions ? EXCEPTION_EXECUTE_HANDLER - : EXCEPTION_CONTINUE_SEARCH ) { - if ( wxTheApp ) +#if !wxUSE_UNICODE + // there seems to be a bug in the GetConsoleCommandHistoryA(), it + // returns the length of Unicode string and not ANSI one + len2 /= 2; +#endif // !wxUSE_UNICODE + + if ( len2 != len ) { - // give the user a chance to do something special about this - wxTheApp->OnFatalException(); + wxFAIL_MSG( wxT("failed getting history?") ); } - - ::ExitProcess(3); // the same exit code as abort() - - // NOTREACHED } -#endif // wxUSE_ON_FATAL_EXCEPTION + + return len; } -// restore warning state -#ifdef __VISUALC__ - #pragma warning(default: 4715) // not all control paths return a value -#endif // Visual C++ +bool wxConsoleStderr::IsHistoryUnchanged() const +{ + wxASSERT_MSG( m_ok == 1, wxT("shouldn't be called if not initialized") ); -#else /* _WINDLL */ + // get (possibly changed) command history + wxWxCharBuffer history; + const int historyLen = GetCommandHistory(history); -//---------------------------------------------------------------------- -// Entry point for wxWindows + the App in a DLL -//---------------------------------------------------------------------- + // and compare it with the original one + return historyLen == m_historyLen && history && + memcmp(m_history, history, historyLen) == 0; +} -int wxEntry(WXHINSTANCE hInstance) +bool wxConsoleStderr::Write(const wxString& text) { - wxhInstance = (HINSTANCE) hInstance; - wxEntryStart(0, 0); + wxASSERT_MSG( m_hStderr != INVALID_HANDLE_VALUE, + wxT("should only be called if Init() returned true") ); - // The app may have declared a global application object, but we recommend - // the IMPLEMENT_APP macro is used instead, which sets an initializer function - // for delayed, dynamic app object construction. - if (!wxTheApp) + // get current position + CONSOLE_SCREEN_BUFFER_INFO csbi; + if ( !::GetConsoleScreenBufferInfo(m_hStderr, &csbi) ) { - wxCHECK_MSG( wxApp::GetInitializerFunction(), 0, - "No initializer - use IMPLEMENT_APP macro." ); - - wxTheApp = (* wxApp::GetInitializerFunction()) (); + wxLogLastError(wxT("GetConsoleScreenBufferInfo")); + return false; } - wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" ); - - wxTheApp->argc = 0; - wxTheApp->argv = NULL; + // and calculate new position (where is empty line) + csbi.dwCursorPosition.X = 0; + csbi.dwCursorPosition.Y -= m_dataLine; - wxEntryInitGui(); + if ( !::SetConsoleCursorPosition(m_hStderr, csbi.dwCursorPosition) ) + { + wxLogLastError(wxT("SetConsoleCursorPosition")); + return false; + } - wxTheApp->OnInit(); + DWORD ret; + if ( !::FillConsoleOutputCharacter(m_hStderr, wxT(' '), m_dataLen, + csbi.dwCursorPosition, &ret) ) + { + wxLogLastError(wxT("FillConsoleOutputCharacter")); + return false; + } - wxWindow *topWindow = wxTheApp->GetTopWindow(); - if ( topWindow && topWindow->GetHWND()) + if ( !::WriteConsole(m_hStderr, text.wx_str(), text.length(), &ret, NULL) ) { - topWindow->Show(TRUE); + wxLogLastError(wxT("WriteConsole")); + return false; } - return 1; + WriteConsoleA(m_hStderr, m_data, m_dataLen, &ret, 0); + + return true; } -#endif // _WINDLL -//// Static member initialization +wxConsoleStderr s_consoleStderr; -wxAppInitializerFunction wxAppBase::m_appInitFn = (wxAppInitializerFunction) NULL; +} // anonymous namespace -wxApp::wxApp() +bool wxGUIAppTraits::CanUseStderr() { - argc = 0; - argv = NULL; - m_printMode = wxPRINT_WINDOWS; - m_auto3D = TRUE; + return s_consoleStderr.IsOkToUse(); } -wxApp::~wxApp() +bool wxGUIAppTraits::WriteToStderr(const wxString& text) { - // Delete command-line args - int i; - for (i = 0; i < argc; i++) - { - delete[] argv[i]; - } - delete[] argv; + return s_consoleStderr.IsOkToUse() && s_consoleStderr.Write(text); } -bool wxApp::Initialized() +#else // !wxUSE_DYNLIB_CLASS + +bool wxGUIAppTraits::CanUseStderr() { -#ifndef _WINDLL - if (GetTopWindow()) - return TRUE; - else - return FALSE; -#else // Assume initialized if DLL (no way of telling) - return TRUE; -#endif + return false; } -/* - * Get and process a message, returning FALSE if WM_QUIT - * received (and also set the flag telling the app to exit the main loop) - * - */ -bool wxApp::DoMessage() +bool wxGUIAppTraits::WriteToStderr(const wxString& WXUNUSED(text)) { - BOOL rc = ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0); - if ( rc == 0 ) - { - // got WM_QUIT - m_keepGoing = FALSE; + return false; +} - return FALSE; - } - else if ( rc == -1 ) - { - // should never happen, but let's test for it nevertheless - wxLogLastError(wxT("GetMessage")); - } - else - { -#if wxUSE_THREADS - wxASSERT_MSG( wxThread::IsMain(), - wxT("only the main thread can process Windows messages") ); +#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS - static bool s_hadGuiLock = TRUE; - static wxMsgArray s_aSavedMessages; +#endif // !__WXWINCE__ - // if a secondary thread owns is doing GUI calls, save all messages for - // later processing - we can't process them right now because it will - // lead to recursive library calls (and we're not reentrant) - if ( !wxGuiOwnedByMainThread() ) - { - s_hadGuiLock = FALSE; +// =========================================================================== +// wxApp implementation +// =========================================================================== - // leave out WM_COMMAND messages: too dangerous, sometimes - // the message will be processed twice - if ( !wxIsWaitingForThread() || - s_currentMsg.message != WM_COMMAND ) - { - s_aSavedMessages.Add(s_currentMsg); - } +int wxApp::m_nCmdShow = SW_SHOWNORMAL; - return TRUE; - } - else - { - // have we just regained the GUI lock? if so, post all of the saved - // messages - // - // FIXME of course, it's not _exactly_ the same as processing the - // messages normally - expect some things to break... - if ( !s_hadGuiLock ) - { - s_hadGuiLock = TRUE; +// --------------------------------------------------------------------------- +// wxWin macros +// --------------------------------------------------------------------------- - size_t count = s_aSavedMessages.GetCount(); - for ( size_t n = 0; n < count; n++ ) - { - MSG& msg = s_aSavedMessages[n]; +IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) - DoMessage((WXMSG *)&msg); - } +BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) + EVT_IDLE(wxApp::OnIdle) + EVT_END_SESSION(wxApp::OnEndSession) + EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession) +END_EVENT_TABLE() - s_aSavedMessages.Empty(); - } - } -#endif // wxUSE_THREADS +// class to ensure that wxAppBase::CleanUp() is called if our Initialize() +// fails +class wxCallBaseCleanup +{ +public: + wxCallBaseCleanup(wxApp *app) : m_app(app) { } + ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); } - // Process the message - DoMessage((WXMSG *)&s_currentMsg); - } + void Dismiss() { m_app = NULL; } - return TRUE; -} +private: + wxApp *m_app; +}; -void wxApp::DoMessage(WXMSG *pMsg) +//// Initialize +bool wxApp::Initialize(int& argc, wxChar **argv) { - if ( !ProcessMessage(pMsg) ) - { - ::TranslateMessage((MSG *)pMsg); - ::DispatchMessage((MSG *)pMsg); - } -} - -/* - * Keep trying to process messages until WM_QUIT - * received. - * - * If there are messages to be processed, they will all be - * processed and OnIdle will not be called. - * When there are no more messages, OnIdle is called. - * If OnIdle requests more time, - * it will be repeatedly called so long as there are no pending messages. - * A 'feature' of this is that once OnIdle has decided that no more processing - * is required, then it won't get processing time until further messages - * are processed (it'll sit in DoMessage). - */ + if ( !wxAppBase::Initialize(argc, argv) ) + return false; -int wxApp::MainLoop() -{ - m_keepGoing = TRUE; + // ensure that base cleanup is done if we return too early + wxCallBaseCleanup callBaseCleanup(this); - while ( m_keepGoing ) - { -#if wxUSE_THREADS - wxMutexGuiLeaveOrEnter(); -#endif // wxUSE_THREADS +#if !defined(__WXMICROWIN__) + InitCommonControls(); +#endif // !defined(__WXMICROWIN__) - while ( !Pending() && ProcessIdle() ) - ; +#if defined(__SMARTPHONE__) || defined(__POCKETPC__) + SHInitExtraControls(); +#endif - // a message came or no more idle processing to do - DoMessage(); - } +#ifndef __WXWINCE__ + // Don't show a message box if a function such as SHGetFileInfo + // fails to find a device. + SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOOPENFILEERRORBOX); +#endif - return s_currentMsg.wParam; -} + wxOleInitialize(); -// Returns TRUE if more time is needed. -bool wxApp::ProcessIdle() -{ - wxIdleEvent event; - event.SetEventObject(this); - ProcessEvent(event); +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) + wxSetKeyboardHook(true); +#endif - return event.MoreRequested(); -} + callBaseCleanup.Dismiss(); -void wxApp::ExitMainLoop() -{ - // this will set m_keepGoing to FALSE a bit later - ::PostQuitMessage(0); + return true; } -bool wxApp::Pending() -{ - return ::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0; -} +// --------------------------------------------------------------------------- +// Win32 window class registration +// --------------------------------------------------------------------------- -void wxApp::Dispatch() +/* static */ +const wxChar *wxApp::GetRegisteredClassName(const wxChar *name, + int bgBrushCol, + int extraStyles) { - DoMessage(); -} + const size_t count = gs_regClassesInfo.size(); + for ( size_t n = 0; n < count; n++ ) + { + if ( gs_regClassesInfo[n].regname == name ) + return gs_regClassesInfo[n].regname.c_str(); + } -/* - * Give all windows a chance to preprocess - * the message. Some may have accelerator tables, or have - * MDI complications. - */ + // we need to register this class + WNDCLASS wndclass; + wxZeroMemory(wndclass); -bool wxApp::ProcessMessage(WXMSG *wxmsg) -{ - MSG *msg = (MSG *)wxmsg; - HWND hwnd = msg->hwnd; - wxWindow *wndThis = wxGetWindowFromHWND((WXHWND)hwnd); - - // this may happen if the event occured in a standard modeless dialog (the - // only example of which I know of is the find/replace dialog) - then call - // IsDialogMessage() to make TAB navigation in it work - if ( !wndThis ) - { - // we need to find the dialog containing this control as - // IsDialogMessage() just eats all the messages (i.e. returns TRUE for - // them) if we call it for the control itself - while ( hwnd && ::GetWindowLong(hwnd, GWL_STYLE) & WS_CHILD ) - { - hwnd = ::GetParent(hwnd); - } + wndclass.lpfnWndProc = (WNDPROC)wxWndProc; + wndclass.hInstance = wxGetInstance(); + wndclass.hCursor = ::LoadCursor(NULL, IDC_ARROW); + wndclass.hbrBackground = (HBRUSH)wxUIntToPtr(bgBrushCol + 1); + wndclass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | extraStyles; - return hwnd && ::IsDialogMessage(hwnd, msg) != 0; - } -#if wxUSE_TOOLTIPS - // we must relay WM_MOUSEMOVE events to the tooltip ctrl if we want it to - // popup the tooltip bubbles - if ( (msg->message == WM_MOUSEMOVE) ) + ClassRegInfo regClass(name); + wndclass.lpszClassName = regClass.regname.wx_str(); + if ( !::RegisterClass(&wndclass) ) { - wxToolTip *tt = wndThis->GetToolTip(); - if ( tt ) - { - tt->RelayEvent(wxmsg); - } + wxLogLastError(wxString::Format(wxT("RegisterClass(%s)"), + regClass.regname)); + return NULL; } -#endif // wxUSE_TOOLTIPS - // allow the window to prevent certain messages from being - // translated/processed (this is currently used by wxTextCtrl to always - // grab Ctrl-C/V/X, even if they are also accelerators in some parent) - if ( !wndThis->MSWShouldPreProcessMessage(wxmsg) ) + wndclass.style &= ~(CS_HREDRAW | CS_VREDRAW); + wndclass.lpszClassName = regClass.regnameNR.wx_str(); + if ( !::RegisterClass(&wndclass) ) { - return FALSE; + wxLogLastError(wxString::Format(wxT("RegisterClass(%s)"), + regClass.regname)); + ::UnregisterClass(regClass.regname.c_str(), wxGetInstance()); + return NULL; } - // try translations first: the accelerators override everything - wxWindow *wnd; + gs_regClassesInfo.push_back(regClass); - for ( wnd = wndThis; wnd; wnd = wnd->GetParent() ) + // take care to return the pointer which will remain valid after the + // function returns (it could be invalidated later if new elements are + // added to the vector and it's reallocated but this shouldn't matter as + // this pointer should be used right now, not stored) + return gs_regClassesInfo.back().regname.wx_str(); +} + +bool wxApp::IsRegisteredClassName(const wxString& name) +{ + const size_t count = gs_regClassesInfo.size(); + for ( size_t n = 0; n < count; n++ ) { - if ( wnd->MSWTranslateMessage(wxmsg)) - return TRUE; - - // stop at first top level window, i.e. don't try to process the key - // strokes originating in a dialog using the accelerators of the parent - // frame - this doesn't make much sense - if ( wnd->IsTopLevel() ) - break; + if ( gs_regClassesInfo[n].regname == name || + gs_regClassesInfo[n].regnameNR == name ) + return true; } - // now try the other hooks (kbd navigation is handled here): we start from - // wndThis->GetParent() because wndThis->MSWProcessMessage() was already - // called above - for ( wnd = wndThis->GetParent(); wnd; wnd = wnd->GetParent() ) + return false; +} + +void wxApp::UnregisterWindowClasses() +{ + const size_t count = gs_regClassesInfo.size(); + for ( size_t n = 0; n < count; n++ ) { - if ( wnd->MSWProcessMessage(wxmsg) ) - return TRUE; + const ClassRegInfo& regClass = gs_regClassesInfo[n]; + if ( !::UnregisterClass(regClass.regname.c_str(), wxGetInstance()) ) + { + wxLogLastError(wxString::Format(wxT("UnregisterClass(%s)"), + regClass.regname)); + } + + if ( !::UnregisterClass(regClass.regnameNR.c_str(), wxGetInstance()) ) + { + wxLogLastError(wxString::Format(wxT("UnregisterClass(%s)"), + regClass.regnameNR)); + } } - // no special preprocessing for this message, dispatch it normally - return FALSE; + gs_regClassesInfo.clear(); } -void wxApp::OnIdle(wxIdleEvent& event) +void wxApp::CleanUp() { - static bool s_inOnIdle = FALSE; + // all objects pending for deletion must be deleted first, otherwise + // UnregisterWindowClasses() call wouldn't succeed (because windows + // using the classes being unregistered still exist), so call the base + // class method first and only then do our clean up + wxAppBase::CleanUp(); + +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) + wxSetKeyboardHook(false); +#endif - // Avoid recursion (via ProcessEvent default case) - if ( s_inOnIdle ) - return; + wxOleUninitialize(); - s_inOnIdle = TRUE; + // for an EXE the classes are unregistered when it terminates but DLL may + // be loaded several times (load/unload/load) into the same process in + // which case the registration will fail after the first time if we don't + // unregister the classes now + UnregisterWindowClasses(); +} - // If there are pending events, we must process them: pending events - // are either events to the threads other than main or events posted - // with wxPostEvent() functions - // GRG: I have moved this here so that all pending events are processed - // before starting to delete any objects. This behaves better (in - // particular, wrt wxPostEvent) and is coherent with wxGTK's current - // behaviour. Changed Feb/2000 before 2.1.14 - ProcessPendingEvents(); +// ---------------------------------------------------------------------------- +// wxApp ctor/dtor +// ---------------------------------------------------------------------------- - // 'Garbage' collection of windows deleted with Close(). - DeletePendingObjects(); +wxApp::wxApp() +{ + m_printMode = wxPRINT_WINDOWS; +} + +wxApp::~wxApp() +{ +} -#if wxUSE_LOG - // flush the logged messages if any - wxLog::FlushActive(); -#endif // wxUSE_LOG +// ---------------------------------------------------------------------------- +// wxApp idle handling +// ---------------------------------------------------------------------------- +void wxApp::OnIdle(wxIdleEvent& WXUNUSED(event)) +{ #if wxUSE_DC_CACHEING // automated DC cache management: clear the cached DCs and bitmap // if it's likely that the app has finished with them, that is, we // get an idle event and we're not dragging anything. if (!::GetKeyState(MK_LBUTTON) && !::GetKeyState(MK_MBUTTON) && !::GetKeyState(MK_RBUTTON)) - wxDC::ClearCache(); + wxMSWDCImpl::ClearCache(); #endif // wxUSE_DC_CACHEING - - // Send OnIdle events to all windows - if ( SendIdleEvents() ) - { - // SendIdleEvents() returns TRUE if at least one window requested more - // idle events - event.RequestMore(TRUE); - } - - s_inOnIdle = FALSE; } -// Send idle event to all top-level windows -bool wxApp::SendIdleEvents() +void wxApp::WakeUpIdle() { - bool needMore = FALSE; - - wxWindowList::Node* node = wxTopLevelWindows.GetFirst(); - while (node) + // Send the top window a dummy message so idle handler processing will + // start up again. Doing it this way ensures that the idle handler + // wakes up in the right thread (see also wxWakeUpMainThread() which does + // the same for the main app thread only) + wxWindow * const topWindow = wxTheApp->GetTopWindow(); + if ( topWindow ) { - wxWindow* win = node->GetData(); - if (SendIdleEvents(win)) - needMore = TRUE; - node = node->GetNext(); + HWND hwndTop = GetHwndOf(topWindow); + + // Do not post WM_NULL if there's already a pending WM_NULL to avoid + // overflowing the message queue. + // + // Notice that due to a limitation of PeekMessage() API (which handles + // 0,0 range specially), we have to check the range from 0-1 instead. + // This still makes it possible to overflow the queue with WM_NULLs by + // interspersing the calles to WakeUpIdle() with windows creation but + // it should be rather hard to do it accidentally. + MSG msg; + if ( !::PeekMessage(&msg, hwndTop, 0, 1, PM_NOREMOVE) || + ::PeekMessage(&msg, hwndTop, 1, 1, PM_NOREMOVE) ) + { + if ( !::PostMessage(hwndTop, WM_NULL, 0, 0) ) + { + // should never happen + wxLogLastError(wxT("PostMessage(WM_NULL)")); + } + } } - - return needMore; +#if wxUSE_THREADS + else + wxWakeUpMainThread(); +#endif // wxUSE_THREADS } -// Send idle event to window and all subwindows -bool wxApp::SendIdleEvents(wxWindow* win) +// ---------------------------------------------------------------------------- +// other wxApp event hanlders +// ---------------------------------------------------------------------------- + +void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event)) { - bool needMore = FALSE; + // Windows will terminate the process soon after we return from + // WM_ENDSESSION handler or when we delete our last window, so make sure we + // at least execute our cleanup code before - wxIdleEvent event; - event.SetEventObject(win); - win->GetEventHandler()->ProcessEvent(event); + // prevent the window from being destroyed when the corresponding wxTLW is + // destroyed: this will result in a leak of a HWND, of course, but who + // cares when the process is being killed anyhow + if ( !wxTopLevelWindows.empty() ) + wxTopLevelWindows[0]->SetHWND(0); - if (event.MoreRequested()) - needMore = TRUE; + const int rc = OnExit(); - wxNode* node = win->GetChildren().First(); - while (node) - { - wxWindow* win = (wxWindow*) node->Data(); - if (SendIdleEvents(win)) - needMore = TRUE; + wxEntryCleanup(); - node = node->Next(); - } - return needMore; + // calling exit() instead of ExitProcess() or not doing anything at all and + // being killed by Windows has the advantage of executing the dtors of + // global objects + exit(rc); } -void wxApp::DeletePendingObjects() +// Default behaviour: close the application with prompts. The +// user can veto the close, and therefore the end session. +void wxApp::OnQueryEndSession(wxCloseEvent& event) { - wxNode *node = wxPendingDelete.First(); - while (node) + if (GetTopWindow()) { - wxObject *obj = (wxObject *)node->Data(); + if (!GetTopWindow()->Close(!event.CanVeto())) + event.Veto(true); + } +} - delete obj; +// ---------------------------------------------------------------------------- +// system DLL versions +// ---------------------------------------------------------------------------- - if (wxPendingDelete.Member(obj)) - delete node; +// these functions have trivial inline implementations for CE +#ifndef __WXWINCE__ - // Deleting one object may have deleted other pending - // objects, so start from beginning of list again. - node = wxPendingDelete.First(); - } -} +#if wxUSE_DYNLIB_CLASS -void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event)) +namespace { - if (GetTopWindow()) - GetTopWindow()->Close(TRUE); -} -// Default behaviour: close the application with prompts. The -// user can veto the close, and therefore the end session. -void wxApp::OnQueryEndSession(wxCloseEvent& event) +// helper function: retrieve the DLL version by using DllGetVersion(), returns +// 0 if the DLL doesn't export such function +int CallDllGetVersion(wxDynamicLibrary& dll) { - if (GetTopWindow()) + // now check if the function is available during run-time + wxDYNLIB_FUNCTION( DLLGETVERSIONPROC, DllGetVersion, dll ); + if ( !pfnDllGetVersion ) + return 0; + + DLLVERSIONINFO dvi; + dvi.cbSize = sizeof(dvi); + + HRESULT hr = (*pfnDllGetVersion)(&dvi); + if ( FAILED(hr) ) { - if (!GetTopWindow()->Close(!event.CanVeto())) - event.Veto(TRUE); + wxLogApiError(wxT("DllGetVersion"), hr); + + return 0; } + + return 100*dvi.dwMajorVersion + dvi.dwMinorVersion; } +} // anonymous namespace + /* static */ int wxApp::GetComCtl32Version() { -#ifdef __WXMICROWIN__ - return 0; -#else // cache the result + // + // NB: this is MT-ok as in the worst case we'd compute s_verComCtl32 twice, + // but as its value should be the same both times it doesn't matter static int s_verComCtl32 = -1; - wxCRIT_SECT_DECLARE(csComCtl32); - wxCRIT_SECT_LOCKER(lock, csComCtl32); - if ( s_verComCtl32 == -1 ) { - // initally assume no comctl32.dll at all - s_verComCtl32 = 0; + // we're prepared to handle the errors + wxLogNull noLog; + + // we don't want to load comctl32.dll, it should be already loaded but, + // depending on the OS version and the presence of the manifest, it can + // be either v5 or v6 and instead of trying to guess it just get the + // handle of the already loaded version + wxLoadedDLL dllComCtl32(wxT("comctl32.dll")); + if ( !dllComCtl32.IsLoaded() ) + { + s_verComCtl32 = 0; + return 0; + } - // do we have it? - HMODULE hModuleComCtl32 = ::GetModuleHandle(wxT("COMCTL32")); + // try DllGetVersion() for recent DLLs + s_verComCtl32 = CallDllGetVersion(dllComCtl32); - // if so, then we can check for the version - if ( hModuleComCtl32 ) + // if DllGetVersion() is unavailable either during compile or + // run-time, try to guess the version otherwise + if ( !s_verComCtl32 ) { - // try to use DllGetVersion() if available in _headers_ - #ifdef DLLVER_PLATFORM_WINDOWS // defined in shlwapi.h - DLLGETVERSIONPROC pfnDllGetVersion = (DLLGETVERSIONPROC) - ::GetProcAddress(hModuleComCtl32, "DllGetVersion"); - if ( pfnDllGetVersion ) + // InitCommonControlsEx is unique to 4.70 and later + void *pfn = dllComCtl32.GetSymbol(wxT("InitCommonControlsEx")); + if ( !pfn ) + { + // not found, must be 4.00 + s_verComCtl32 = 400; + } + else // 4.70+ + { + // many symbols appeared in comctl32 4.71, could use any of + // them except may be DllInstall() + pfn = dllComCtl32.GetSymbol(wxT("InitializeFlatSB")); + if ( !pfn ) { - DLLVERSIONINFO dvi; - dvi.cbSize = sizeof(dvi); - - HRESULT hr = (*pfnDllGetVersion)(&dvi); - if ( FAILED(hr) ) - { - wxLogApiError(_T("DllGetVersion"), hr); - } - else - { - // this is incompatible with _WIN32_IE values, but - // compatible with the other values returned by - // GetComCtl32Version() - s_verComCtl32 = 100*dvi.dwMajorVersion + - dvi.dwMinorVersion; - } + // not found, must be 4.70 + s_verComCtl32 = 470; } - #endif - // DllGetVersion() unavailable either during compile or - // run-time, try to guess the version otherwise - if ( !s_verComCtl32 ) + else { - // InitCommonControlsEx is unique to 4.70 and later - FARPROC theProc = ::GetProcAddress - ( - hModuleComCtl32, - "InitCommonControlsEx" - ); - - if ( !theProc ) - { - // not found, must be 4.00 - s_verComCtl32 = 400; - } - else - { - // many symbols appeared in comctl32 4.71, could use - // any of them except may be DllInstall - theProc = ::GetProcAddress - ( - hModuleComCtl32, - "InitializeFlatSB" - ); - if ( !theProc ) - { - // not found, must be 4.70 - s_verComCtl32 = 470; - } - else - { - // found, must be 4.71 - s_verComCtl32 = 471; - } - } + // found, must be 4.71 or later + s_verComCtl32 = 471; } + } } } return s_verComCtl32; -#endif } -void wxExit() -{ - wxLogError(_("Fatal error: exiting")); - - wxApp::CleanUp(); - exit(0); -} - -// Yield to incoming messages - -bool wxApp::Yield(bool onlyIfNeeded) +/* static */ +int wxApp::GetShell32Version() { - // MT-FIXME - static bool s_inYield = FALSE; + static int s_verShell32 = -1; + if ( s_verShell32 == -1 ) + { + // we're prepared to handle the errors + wxLogNull noLog; - // disable log flushing from here because a call to wxYield() shouldn't - // normally result in message boxes popping up &c - wxLog::Suspend(); + wxDynamicLibrary dllShell32(wxT("shell32.dll"), wxDL_VERBATIM); + if ( dllShell32.IsLoaded() ) + { + s_verShell32 = CallDllGetVersion(dllShell32); - if ( s_inYield ) - { - if ( !onlyIfNeeded ) + if ( !s_verShell32 ) + { + // there doesn't seem to be any way to distinguish between 4.00 + // and 4.70 (starting from 4.71 we have DllGetVersion()) so + // just assume it is 4.0 + s_verShell32 = 400; + } + } + else // failed load the DLL? { - wxFAIL_MSG( wxT("wxYield called recursively" ) ); + s_verShell32 = 0; } - - return FALSE; - } - - s_inYield = TRUE; - - // we don't want to process WM_QUIT from here - it should be processed in - // the main event loop in order to stop it - MSG msg; - while ( PeekMessage(&msg, (HWND)0, 0, 0, PM_NOREMOVE) && - msg.message != WM_QUIT ) - { -#if wxUSE_THREADS - wxMutexGuiLeaveOrEnter(); -#endif // wxUSE_THREADS - - if ( !wxTheApp->DoMessage() ) - break; } - // if there are pending events, we must process them. - ProcessPendingEvents(); - - // let the logs be flashed again - wxLog::Resume(); + return s_verShell32; +} - s_inYield = FALSE; +#else // !wxUSE_DYNLIB_CLASS - return TRUE; +/* static */ +int wxApp::GetComCtl32Version() +{ + return 0; } -bool wxHandleFatalExceptions(bool doit) +/* static */ +int wxApp::GetShell32Version() { -#if wxUSE_ON_FATAL_EXCEPTION - // assume this can only be called from the main thread - gs_handleExceptions = doit; + return 0; +} - return TRUE; -#else - wxFAIL_MSG(_T("set wxUSE_ON_FATAL_EXCEPTION to 1 to use this function")); +#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS - (void)doit; - return FALSE; -#endif -} +#endif // !__WXWINCE__ -//----------------------------------------------------------------------------- -// wxWakeUpIdle -//----------------------------------------------------------------------------- +#if wxUSE_EXCEPTIONS -void wxWakeUpIdle() +// ---------------------------------------------------------------------------- +// exception handling +// ---------------------------------------------------------------------------- + +bool wxApp::OnExceptionInMainLoop() { - // Send the top window a dummy message so idle handler processing will - // start up again. Doing it this way ensures that the idle handler - // wakes up in the right thread (see also wxWakeUpMainThread() which does - // the same for the main app thread only) - wxWindow *topWindow = wxTheApp->GetTopWindow(); - if ( topWindow ) + // ask the user about what to do: use the Win32 API function here as it + // could be dangerous to use any wxWidgets code in this state + switch ( + ::MessageBox + ( + NULL, + wxT("An unhandled exception occurred. Press \"Abort\" to \ +terminate the program,\r\n\ +\"Retry\" to exit the program normally and \"Ignore\" to try to continue."), + wxT("Unhandled exception"), + MB_ABORTRETRYIGNORE | + MB_ICONERROR| + MB_TASKMODAL + ) + ) { - if ( !::PostMessage(GetHwndOf(topWindow), WM_NULL, 0, 0) ) - { - // should never happen - wxLogLastError(wxT("PostMessage(WM_NULL)")); - } + case IDABORT: + throw; + + default: + wxFAIL_MSG( wxT("unexpected MessageBox() return code") ); + // fall through + + case IDRETRY: + return false; + + case IDIGNORE: + return true; } } -//----------------------------------------------------------------------------- - -// For some reason, with MSVC++ 1.5, WinMain isn't linked in properly -// if in a separate file. So include it here to ensure it's linked. -#if (defined(__VISUALC__) && !defined(__WIN32__)) || (defined(__GNUWIN32__) && !defined(__TWIN32__) && !defined(WXMAKINGDLL)) -#include "main.cpp" -#endif +#endif // wxUSE_EXCEPTIONS