X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/aadbdf11bda695e2ca135ef1e4dc09d6c01d2521..ef0898052549fc7d1c71b1165dafef42c9735cdf:/src/msw/app.cpp diff --git a/src/msw/app.cpp b/src/msw/app.cpp index 225124f277..7d430057a9 100644 --- a/src/msw/app.cpp +++ b/src/msw/app.cpp @@ -5,8 +5,8 @@ // 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 ///////////////////////////////////////////////////////////////////////////// // =========================================================================== @@ -17,7 +17,7 @@ // headers // --------------------------------------------------------------------------- -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "app.h" #endif @@ -43,29 +43,25 @@ #include "wx/msgdlg.h" #include "wx/intl.h" #include "wx/dynarray.h" + #include "wx/wxchar.h" + #include "wx/icon.h" + #include "wx/log.h" #endif -#include "wx/msw/private.h" -#include "wx/log.h" +#include "wx/apptrait.h" +#include "wx/filename.h" #include "wx/module.h" +#include "wx/dynlib.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 +#include "wx/msw/private.h" -#if wxUSE_WX_RESOURCES - #include "wx/resource.h" -#endif +#if wxUSE_TOOLTIPS + #include "wx/tooltip.h" +#endif // wxUSE_TOOLTIPS -// OLE is used for drag-and-drop, clipboard, OLE Automation... -#if defined(__GNUWIN32__) || defined(__SC__) || defined(__SALFORDC__) +// 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(__SYMANTEC__) || defined(__SALFORDC__) #undef wxUSE_OLE #define wxUSE_OLE 0 @@ -78,1126 +74,706 @@ #include #include -#if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__) - #include +#include "wx/msw/wrapcctl.h" + +// For MB_TASKMODAL +#ifdef __WXWINCE__ +#include "wx/msw/wince/missing.h" #endif -#include "wx/msw/msvcrt.h" +#if (!defined(__MINGW32__) || wxCHECK_W32API_VERSION( 2, 0 )) && \ + !defined(__CYGWIN__) && !defined(__DIGITALMARS__) && !defined(__WXWINCE__) && \ + (!defined(_MSC_VER) || (_MSC_VER > 1100)) + #include +#endif // --------------------------------------------------------------------------- // global variables // --------------------------------------------------------------------------- -extern char *wxBuffer; -extern char *wxOsVersion; -extern wxList *wxWinHandleList; extern wxList WXDLLEXPORT wxPendingDelete; -#if wxUSE_THREADS -extern wxList *wxPendingEvents; -extern wxCriticalSection *wxPendingEventsLocker; -#endif -extern void wxSetKeyboardHook(bool doIt); -extern wxCursor *g_globalCursor; - -HINSTANCE wxhInstance = 0; -static MSG s_currentMsg; -wxApp *wxTheApp = NULL; -// FIXME why not const? and not static? -char wxFrameClassName[] = "wxFrameClass"; -char wxMDIFrameClassName[] = "wxMDIFrameClass"; -char wxMDIChildFrameClassName[] = "wxMDIChildFrameClass"; -char wxPanelClassName[] = "wxPanelClass"; -char wxCanvasClassName[] = "wxCanvasClass"; - -HICON wxSTD_FRAME_ICON = (HICON) NULL; -HICON wxSTD_MDICHILDFRAME_ICON = (HICON) NULL; -HICON wxSTD_MDIPARENTFRAME_ICON = (HICON) NULL; +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) +extern void wxSetKeyboardHook(bool doIt); +#endif -HICON wxDEFAULT_FRAME_ICON = (HICON) NULL; -HICON wxDEFAULT_MDICHILDFRAME_ICON = (HICON) NULL; -HICON wxDEFAULT_MDIPARENTFRAME_ICON = (HICON) NULL; +// 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"); HBRUSH wxDisableButtonBrush = (HBRUSH) 0; -LRESULT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM); +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- -#if defined(__WIN95__) && !defined(__TWIN32__) - #define wxUSE_RICHEDIT 1 -#else - #define wxUSE_RICHEDIT 0 -#endif - -#if wxUSE_RICHEDIT - static HINSTANCE gs_hRichEdit = (HINSTANCE) NULL; -#endif +LRESULT WXDLLEXPORT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM); // =========================================================================== -// implementation +// wxGUIAppTraits implementation // =========================================================================== -// --------------------------------------------------------------------------- -// wxApp -// --------------------------------------------------------------------------- +// private class which we use to pass parameters from BeforeChildWaitLoop() to +// AfterChildWaitLoop() +struct ChildWaitLoopData +{ + ChildWaitLoopData(wxWindowDisabler *wd_, wxWindow *winActive_) + { + wd = wd_; + winActive = winActive_; + } -#if !USE_SHARED_LIBRARY - IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) + wxWindowDisabler *wd; + wxWindow *winActive; +}; - BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) - EVT_IDLE(wxApp::OnIdle) - EVT_END_SESSION(wxApp::OnEndSession) - EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession) - END_EVENT_TABLE() -#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); +} -long wxApp::sm_lastMessageTime = 0; +void wxGUIAppTraits::AlwaysYield() +{ + wxYield(); +} -//// Initialize -bool wxApp::Initialize() +void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig) { - // Some people may wish to use this, but - // probably it shouldn't be here by default. -#ifdef __WXDEBUG__ - // wxRedirectIOToConsole(); -#endif + wxEndBusyCursor(); - wxBuffer = new char[1500]; // FIXME + const ChildWaitLoopData * const data = (ChildWaitLoopData *)dataOrig; - wxClassInfo::InitializeClasses(); + delete data->wd; -#if wxUSE_RESOURCES - wxGetResource("wxWindows", "OsVersion", &wxOsVersion); -#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(); +} - // 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. -#if wxUSE_THREADS - wxPendingEvents = new wxList(); - wxPendingEventsLocker = new wxCriticalSection(); -#endif +bool wxGUIAppTraits::DoMessageFromThreadWait() +{ + // we should return false only if the app should exit, i.e. only if + // Dispatch() determines that the main event loop should terminate + return !wxTheApp || wxTheApp->Dispatch(); +} - wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING); - wxTheColourDatabase->Initialize(); +wxToolkitInfo& wxGUIAppTraits::GetToolkitInfo() +{ + static wxToolkitInfo info; + wxToolkitInfo& baseInfo = wxAppTraits::GetToolkitInfo(); + info.versionMajor = baseInfo.versionMajor; + info.versionMinor = baseInfo.versionMinor; + info.os = baseInfo.os; + info.shortName = _T("msw"); + info.name = _T("wxMSW"); +#ifdef __WXUNIVERSAL__ + info.shortName << _T("univ"); + info.name << _T("/wxUniversal"); +#endif + return info; +} - wxInitializeStockLists(); - wxInitializeStockObjects(); +// =========================================================================== +// wxApp implementation +// =========================================================================== -#if wxUSE_WX_RESOURCES - wxInitializeResourceSystem(); -#endif +int wxApp::m_nCmdShow = SW_SHOWNORMAL; - wxBitmap::InitStandardHandlers(); +// --------------------------------------------------------------------------- +// wxWin macros +// --------------------------------------------------------------------------- -#if defined(__WIN95__) - InitCommonControls(); +IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) -#if wxUSE_RICHEDIT - gs_hRichEdit = LoadLibrary("RICHED32.DLL"); +BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) + EVT_IDLE(wxApp::OnIdle) + EVT_END_SESSION(wxApp::OnEndSession) + EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession) +END_EVENT_TABLE() - if (gs_hRichEdit == (HINSTANCE) NULL) - { - wxLogError(_("Could not initialise Rich Edit DLL")); - } -#endif // wxUSE_RICHEDIT +// 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(); } -#endif // __WIN95__ + void Dismiss() { m_app = NULL; } - // for OLE, enlarge message queue to be as large as possible - int iMsg = 96; - while (!SetMessageQueue(iMsg) && (iMsg -= 8)); +private: + wxApp *m_app; +}; - /* - DWORD dwOleVer; - dwOleVer = CoBuildVersion(); +//// Initialize +bool wxApp::Initialize(int& argc, wxChar **argv) +{ + if ( !wxAppBase::Initialize(argc, argv) ) + return false; - // check the OLE library version - if (rmm != HIWORD(dwOleVer)) + // ensure that base cleanup is done if we return too early + wxCallBaseCleanup callBaseCleanup(this); + + // 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 && wxGetOsVersion() != wxWINDOWS_CE ) { - wxMessageBox("Incorrect version of OLE libraries."); - return FALSE; + // 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/CE.\nProgram aborted."), + _T("wxWindows Fatal Error"), + MB_ICONERROR | MB_OK + ); + + return FALSE; } - */ +#endif // wxUSE_UNICODE && !wxUSE_UNICODE_MSLU + +#if defined(__WIN95__) && !defined(__WXMICROWIN__) + InitCommonControls(); +#endif // __WIN95__ + +#if wxUSE_OLE || wxUSE_DRAG_AND_DROP #if wxUSE_OLE // we need to initialize OLE library +#ifdef __WXWINCE__ + if ( FAILED(::CoInitializeEx(NULL, COINIT_MULTITHREADED)) ) + wxLogError(_("Cannot initialize OLE")); +#else if ( FAILED(::OleInitialize(NULL)) ) wxLogError(_("Cannot initialize OLE")); #endif +#endif + +#endif // wxUSE_OLE #if wxUSE_CTL3D if (!Ctl3dRegister(wxhInstance)) - wxLogError("Cannot register CTL3D"); + wxLogError(wxT("Cannot register CTL3D")); Ctl3dAutoSubclass(wxhInstance); -#endif - - g_globalCursor = new wxCursor; - - wxSTD_FRAME_ICON = LoadIcon(wxhInstance, "wxSTD_FRAME"); - wxSTD_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDIPARENTFRAME"); - wxSTD_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxSTD_MDICHILDFRAME"); - - wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_FRAME"); - wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDIPARENTFRAME"); - wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDICHILDFRAME"); +#endif // wxUSE_CTL3D RegisterWindowClasses(); +#if defined(__WXMICROWIN__) && !defined(__WXWINCE__) // Create the brush for disabling bitmap buttons - LOGBRUSH lb ; + LOGBRUSH lb; lb.lbStyle = BS_PATTERN; - lb.lbHatch = (int)LoadBitmap( wxhInstance, "wxDISABLE_BUTTON_BITMAP" ) ; - wxDisableButtonBrush = ::CreateBrushIndirect( & lb ) ; - ::DeleteObject( (HGDIOBJ)lb.lbHatch ) ; + 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 #if wxUSE_PENWINDOWS wxRegisterPenWin(); #endif - wxWinHandleList = new wxList(wxKEY_INTEGER); + wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100); - // This is to foil optimizations in Visual C++ that throw out dummy.obj. - // PLEASE DO NOT ALTER THIS. -#if defined(__VISUALC__) && !defined(WXMAKINGDLL) - extern char wxDummyChar; - if (wxDummyChar) wxDummyChar++; +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) + wxSetKeyboardHook(TRUE); #endif - wxSetKeyboardHook(TRUE); + callBaseCleanup.Dismiss(); - wxModule::RegisterModules(); - if (!wxModule::InitializeModules()) - return FALSE; - return TRUE; + return true; } -//// RegisterWindowClasses +// --------------------------------------------------------------------------- +// 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() { - /////////////////////////////////////////////////////////////////////// - // Register the frame window class. - WNDCLASS wndclass; // Structure used to register Windows class. + 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; - wndclass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ; + // the fields which are common to all classes wndclass.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass.cbClsExtra = 0; - wndclass.cbWndExtra = sizeof( DWORD ); // was 4 wndclass.hInstance = wxhInstance; - wndclass.hIcon = (HICON) NULL; // wxSTD_FRAME_ICON; - wndclass.hCursor = LoadCursor( (HINSTANCE) NULL, IDC_ARROW ); - wndclass.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1) ; - // wndclass.hbrBackground = GetStockObject( WHITE_BRUSH ); - wndclass.lpszMenuName = NULL; -#ifdef _MULTIPLE_INSTANCES - sprintf( wxFrameClassName,"wxFrameClass%d", wxhInstance ); -#endif - wndclass.lpszClassName = wxFrameClassName; + 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 )) + if ( !RegisterClass(&wndclass) ) { - // wxFatalError("Can't register Frame Window class"); + wxLogLastError(wxT("RegisterClass(frame)")); + } + + // "no redraw" frame + wndclass.lpszClassName = wxCanvasClassNameNR; + wndclass.style = styleNoRedraw; + + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(no redraw frame)")); } - /////////////////////////////////////////////////////////////////////// // Register the MDI frame window class. - WNDCLASS wndclass1; // Structure used to register Windows class. - - wndclass1.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ; - wndclass1.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass1.cbClsExtra = 0; - wndclass1.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass1.hInstance = wxhInstance; - wndclass1.hIcon = (HICON) NULL; // wxSTD_MDIPARENTFRAME_ICON; - wndclass1.hCursor = LoadCursor( (HINSTANCE) NULL, IDC_ARROW ); - // wndclass1.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1) ; - wndclass1.hbrBackground = (HBRUSH) NULL; - wndclass1.lpszMenuName = NULL; - - wndclass1.lpszClassName = wxMDIFrameClassName; - if (!RegisterClass( &wndclass1 )) + wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves + wndclass.lpszClassName = wxMDIFrameClassName; + wndclass.style = styleNormal; + + if ( !RegisterClass(&wndclass) ) { - // wxFatalError("Can't register MDI Frame window class"); - // return FALSE; + wxLogLastError(wxT("RegisterClass(MDI parent)")); } - /////////////////////////////////////////////////////////////////////// - // Register the MDI child frame window class. - WNDCLASS wndclass4; // Structure used to register Windows class. - - wndclass4.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ; - wndclass4.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass4.cbClsExtra = 0; - wndclass4.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass4.hInstance = wxhInstance; - wndclass4.hIcon = (HICON) NULL; // wxSTD_MDICHILDFRAME_ICON; - wndclass4.hCursor = LoadCursor( (HINSTANCE) NULL, IDC_ARROW ); - // TODO: perhaps this should be NULL so that Windows doesn't - // paint the background itself (would OnEraseBackground duplicate - // this?) - wndclass4.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ; - // wndclass4.hbrBackground = NULL; - wndclass4.lpszMenuName = NULL; - wndclass4.lpszClassName = wxMDIChildFrameClassName; - - if (!RegisterClass( &wndclass4 )) + // "no redraw" MDI frame + wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw; + wndclass.style = styleNoRedraw; + + if ( !RegisterClass(&wndclass) ) { - // wxFatalError("Can't register MDI child frame window class"); - // return FALSE; + wxLogLastError(wxT("RegisterClass(no redraw MDI parent frame)")); } - /////////////////////////////////////////////////////////////////////// - // Register the panel window class. - WNDCLASS wndclass2; // Structure used to register Windows class. - memset(&wndclass2, 0, sizeof(WNDCLASS)); // start with NULL defaults - wndclass2.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ; - wndclass2.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass2.cbClsExtra = 0; - wndclass2.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass2.hInstance = wxhInstance; - wndclass2.hIcon = (HICON) NULL; - wndclass2.hCursor = LoadCursor( (HINSTANCE) NULL, IDC_ARROW ); - // wndclass2.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1) ; - wndclass2.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH ); - wndclass2.lpszMenuName = NULL; - wndclass2.lpszClassName = wxPanelClassName; - if (!RegisterClass( &wndclass2 )) + // Register the MDI child frame window class. + wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); + wndclass.lpszClassName = wxMDIChildFrameClassName; + wndclass.style = styleNormal; + + if ( !RegisterClass(&wndclass) ) { - // wxFatalError("Can't register Panel Window class"); - // return FALSE; + wxLogLastError(wxT("RegisterClass(MDI child)")); } - /////////////////////////////////////////////////////////////////////// - // Register the canvas and textsubwindow class name - WNDCLASS wndclass3; // Structure used to register Windows class. - memset(&wndclass3, 0, sizeof(WNDCLASS)); // start with NULL defaults - // Use CS_OWNDC to avoid messing about restoring the context - // for every graphic operation. - // wndclass3.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS ; - // wxWin 2.0 - wndclass3.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS ; - wndclass3.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass3.cbClsExtra = 0; - wndclass3.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass3.hInstance = wxhInstance; - wndclass3.hIcon = (HICON) NULL; - wndclass3.hCursor = LoadCursor( (HINSTANCE) NULL, IDC_ARROW ); - // wndclass3.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ; - wndclass3.hbrBackground = (HBRUSH) NULL; - wndclass3.lpszMenuName = NULL; - wndclass3.lpszClassName = wxCanvasClassName; - if (!RegisterClass( &wndclass3)) + // "no redraw" MDI child frame + wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw; + wndclass.style = styleNoRedraw; + + if ( !RegisterClass(&wndclass) ) { - // wxFatalError("Can't register Canvas class"); - // return FALSE; + wxLogLastError(wxT("RegisterClass(no redraw MDI child)")); } return TRUE; } -//// Convert Windows to argc, argv style +// --------------------------------------------------------------------------- +// UnregisterWindowClasses +// --------------------------------------------------------------------------- -void wxApp::ConvertToStandardCommandArgs(char* lpCmdLine) +bool wxApp::UnregisterWindowClasses() { - wxStringList args; + bool retval = TRUE; - wxString cmdLine(lpCmdLine); - int count = 0; +#ifndef __WXMICROWIN__ + // MDI frame window class. + if ( !::UnregisterClass(wxMDIFrameClassName, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(MDI parent)")); - // Get application name - char name[260]; // 260 is MAX_PATH value from windef.h - ::GetModuleFileName(wxhInstance, name, WXSIZEOF(name)); + retval = FALSE; + } - args.Add(name); - count++; + // "no redraw" MDI frame + if ( !::UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)")); - strcpy(name, wxFileNameFromPath(name)); - wxStripExtension(name); - wxTheApp->SetAppName(name); + retval = FALSE; + } - // Break up string - // Treat strings enclosed in double-quotes as single arguments - int i = 0; - int len = cmdLine.Length(); - while (i < len) + // MDI child frame window class. + if ( !::UnregisterClass(wxMDIChildFrameClassName, wxhInstance) ) { - // Skip whitespace - while ((i < len) && isspace(cmdLine.GetChar(i))) - i ++; - - if (i < len) - { - if (cmdLine.GetChar(i) == '"') // We found the start of a string - { - i ++; - int first = i; - while ((i < len) && (cmdLine.GetChar(i) != '"')) - i ++; + wxLogLastError(wxT("UnregisterClass(MDI child)")); - wxString arg(cmdLine.Mid(first, (i - first))); + retval = FALSE; + } - args.Add(arg); - count ++; + // "no redraw" MDI child frame + if ( !::UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(no redraw MDI child)")); - if (i < len) - i ++; // Skip past 2nd quote - } - else // Unquoted argument - { - int first = i; - while ((i < len) && !isspace(cmdLine.GetChar(i))) - i ++; + retval = FALSE; + } - wxString arg(cmdLine.Mid(first, (i - first))); + // canvas class name + if ( !::UnregisterClass(wxCanvasClassName, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(canvas)")); - args.Add(arg); - count ++; - } - } + retval = FALSE; } - wxTheApp->argv = new char*[count + 1]; - for (i = 0; i < count; i++) + if ( !::UnregisterClass(wxCanvasClassNameNR, wxhInstance) ) { - wxString arg(args[i]); - wxTheApp->argv[i] = copystring((const char*)arg); + wxLogLastError(wxT("UnregisterClass(no redraw canvas)")); + + retval = FALSE; } - wxTheApp->argv[count] = NULL; // argv[] is a NULL-terminated list - wxTheApp->argc = count; -} +#endif // __WXMICROWIN__ -//// Cleans up any wxWindows internal structures left lying around + return retval; +} void wxApp::CleanUp() { - //// COMMON CLEANUP - - // 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); - - // One last chance for pending objects to be cleaned up - wxTheApp->DeletePendingObjects(); - - wxModule::CleanUpModules(); - -#if wxUSE_WX_RESOURCES - wxCleanUpResourceSystem(); - - // wxDefaultResourceTable->ClearTable(); -#endif - - // Indicate that the cursor can be freed, so that cursor won't be deleted - // by deleting the bitmap list before g_globalCursor goes out of scope - // (double deletion of the cursor). - wxSetCursor(wxNullCursor); - delete g_globalCursor; - g_globalCursor = NULL; - - wxDeleteStockObjects() ; - - // Destroy all GDI lists, etc. - wxDeleteStockLists(); - - delete wxTheColourDatabase; - wxTheColourDatabase = NULL; - - wxBitmap::CleanUpHandlers(); - - delete[] wxBuffer; - wxBuffer = NULL; - - //// WINDOWS-SPECIFIC CLEANUP + // all objects pending for deletion must be deleted first, otherwise we + // would crash when they use wxWinHandleHash (and UnregisterWindowClasses() + // call wouldn't succeed as long as any windows 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); - -#ifdef __WIN95__ - -#if wxUSE_RICHEDIT - if (gs_hRichEdit != (HINSTANCE) NULL) - FreeLibrary(gs_hRichEdit); -#endif - #endif #if wxUSE_PENWINDOWS wxCleanUpPenWin(); #endif - if (wxSTD_FRAME_ICON) - DestroyIcon(wxSTD_FRAME_ICON); - if (wxSTD_MDICHILDFRAME_ICON) - DestroyIcon(wxSTD_MDICHILDFRAME_ICON); - if (wxSTD_MDIPARENTFRAME_ICON) - DestroyIcon(wxSTD_MDIPARENTFRAME_ICON); - - 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 ( wxDisableButtonBrush ) - ::DeleteObject( wxDisableButtonBrush ) ; + ::DeleteObject( wxDisableButtonBrush ); #if wxUSE_OLE +#ifdef __WXWINCE__ + ::CoUninitialize(); +#else ::OleUninitialize(); #endif - -#if wxUSE_CTL3D - Ctl3dUnregister(wxhInstance); -#endif - - if (wxWinHandleList) - delete wxWinHandleList ; - - // 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. -#if wxUSE_THREADS - delete wxPendingEvents; - delete wxPendingEventsLocker; - // If we don't do the following, we get an apparent memory leak. - ((wxEvtHandler&) wxDefaultValidator).ClearEventLocker(); #endif - wxClassInfo::CleanUpClasses(); + // 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(); - delete wxTheApp; - wxTheApp = NULL; - -#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) - { - wxLogDebug("There were memory leaks."); - wxDebugContext::Dump(); - wxDebugContext::PrintStatistics(); - } - // wxDebugContext::SetStream(NULL, NULL); +#if wxUSE_CTL3D + Ctl3dUnregister(wxhInstance); #endif - // do it as the very last thing because everything else can log messages - delete wxLog::SetActiveTarget(NULL); + delete wxWinHandleHash; + wxWinHandleHash = NULL; } -#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++ +// ---------------------------------------------------------------------------- +// wxApp ctor/dtor +// ---------------------------------------------------------------------------- -//// Main wxWindows entry point -int wxEntry(WXHINSTANCE hInstance, - WXHINSTANCE WXUNUSED(hPrevInstance), - char *lpCmdLine, - int nCmdShow, - bool enterLoop) +wxApp::wxApp() { - // 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) - wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF); - - // take everything into a try-except block in release build - // FIXME other compilers must support Win32 SEH (structured exception - // handling) too, just find the appropriate keyword in their docs! - // Please note that it's _not_ the same as C++ exceptions! -#if !defined(__WXDEBUG__) && defined(__VISUALC__) - #define CATCH_PROGRAM_EXCEPTIONS - - __try { -#else - #undef CATCH_PROGRAM_EXCEPTIONS -#endif - - wxhInstance = (HINSTANCE) hInstance; - - if (!wxApp::Initialize()) - return 0; - - // create the application object or ensure that one already exists - if (!wxTheApp) - { - // 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, - "No initializer - use IMPLEMENT_APP macro." ); - - wxTheApp = (*wxApp::GetInitializerFunction()) (); - } - - wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" ); - - // save the WinMain() parameters - wxTheApp->ConvertToStandardCommandArgs(lpCmdLine); - wxTheApp->m_nCmdShow = nCmdShow; - - // GUI-specific initialisation. In fact on Windows we don't have any, - // but this call is provided for compatibility across platforms. - wxTheApp->OnInitGui() ; - - int retValue = 0; - - if ( wxTheApp->OnInit() ) - { - if ( enterLoop ) - { - retValue = wxTheApp->OnRun(); - } - else - // We want to initialize, but not run or exit immediately. - return 1; - } - //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); - } - } - - wxTheApp->OnExit(); - - wxApp::CleanUp(); - - return retValue; - -#ifdef CATCH_PROGRAM_EXCEPTIONS - } - __except ( EXCEPTION_EXECUTE_HANDLER ) { - /* - if ( wxTheApp ) - wxTheApp->OnFatalException(); - */ - - // using wxLog would be unsafe here - ::MessageBox(NULL, - _("Unrecoverable program error detected: " - " the application will terminate."), - _("Fatal Error"), - MB_APPLMODAL | MB_ICONSTOP | MB_OK); - - ::ExitProcess(3); // the same exit code as abort() - - // NOTREACHED - } -#endif // CATCH_PROGRAM_EXCEPTIONS + m_printMode = wxPRINT_WINDOWS; } -// restore warning state -#ifdef __VISUALC__ - #pragma warning(default: 4715) // not all control paths return a value -#endif // Visual C++ - -#else /* _WINDLL */ - -//// Entry point for DLLs - -int wxEntry(WXHINSTANCE hInstance) +wxApp::~wxApp() { - wxhInstance = (HINSTANCE) hInstance; - wxApp::Initialize(); + // our cmd line arguments are allocated inside wxEntry(HINSTANCE), they + // don't come from main(), so we have to free them - // 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) + while ( argc ) { - wxCHECK_MSG( wxApp::GetInitializerFunction(), 0, - "No initializer - use IMPLEMENT_APP macro." ); - - wxTheApp = (* wxApp::GetInitializerFunction()) (); + // m_argv elements were allocated by wxStrdup() + free(argv[--argc]); } - wxCHECK_MSG( wxTheApp, 0, "You have to define an instance of wxApp!" ); - - wxTheApp->argc = 0; - wxTheApp->argv = NULL; + // but m_argv itself -- using new[] + delete [] argv; +} - wxTheApp->OnInitGui(); +// ---------------------------------------------------------------------------- +// wxApp idle handling +// ---------------------------------------------------------------------------- - wxTheApp->OnInit(); +void wxApp::OnIdle(wxIdleEvent& event) +{ + wxAppBase::OnIdle(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(); +#endif // wxUSE_DC_CACHEING +} +void wxApp::WakeUpIdle() +{ + // 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 && topWindow->GetHWND()) + if ( topWindow ) { - topWindow->Show(TRUE); + if ( !::PostMessage(GetHwndOf(topWindow), WM_NULL, 0, 0) ) + { + // should never happen + wxLogLastError(wxT("PostMessage(WM_NULL)")); + } } - - return 1; } -#endif // _WINDLL - -//// Static member initialization -wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL; +// ---------------------------------------------------------------------------- +// other wxApp event hanlders +// ---------------------------------------------------------------------------- -wxApp::wxApp() +void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event)) { - m_topWindow = NULL; - wxTheApp = this; - m_className = ""; - m_wantDebugOutput = TRUE ; - m_appName = ""; - argc = 0; - argv = NULL; -#ifdef __WXMSW__ - m_printMode = wxPRINT_WINDOWS; -#else - m_printMode = wxPRINT_POSTSCRIPT; -#endif - m_exitOnFrameDelete = TRUE; - m_auto3D = TRUE; + if (GetTopWindow()) + GetTopWindow()->Close(TRUE); } -wxApp::~wxApp() +// Default behaviour: close the application with prompts. The +// user can veto the close, and therefore the end session. +void wxApp::OnQueryEndSession(wxCloseEvent& event) { - // Delete command-line args - int i; - for (i = 0; i < argc; i++) + if (GetTopWindow()) { - delete[] argv[i]; + if (!GetTopWindow()->Close(!event.CanVeto())) + event.Veto(TRUE); } - delete[] argv; } -bool wxApp::Initialized() -{ -#ifndef _WINDLL - if (GetTopWindow()) - return TRUE; - else - return FALSE; -#endif -#ifdef _WINDLL // Assume initialized if DLL (no way of telling) - return TRUE; -#endif -} +// ---------------------------------------------------------------------------- +// miscellaneous +// ---------------------------------------------------------------------------- -/* - * 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() +/* static */ +int wxApp::GetComCtl32Version() { - BOOL rc = ::GetMessage(&s_currentMsg, (HWND) NULL, 0, 0); - if ( rc == 0 ) - { - // got WM_QUIT - m_keepGoing = FALSE; +//FIX ME FOR DIGITALMARS!! +#if defined(__WXMICROWIN__) || defined(__WXWINCE__) || defined(__DIGITALMARS__) + 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; - return FALSE; - } - else if ( rc == -1 ) - { - // should never happen, but let's test for it nevertheless - wxLogLastError("GetMessage"); - } - else + if ( s_verComCtl32 == -1 ) { -#if wxUSE_THREADS - wxASSERT_MSG( wxThread::IsMain(), - "only the main thread can process Windows messages" ); - - static bool s_hadGuiLock = TRUE; - static wxMsgArray s_aSavedMessages; + // initally assume no comctl32.dll at all + s_verComCtl32 = 0; - // 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; + // we're prepared to handle the errors + wxLogNull noLog; - // 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); - } + // do we have it? + wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM); - return TRUE; - } - else + // if so, then we can check for the version + if ( dllComCtl32.IsLoaded() ) { - // 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 ) +#ifdef DLLVER_PLATFORM_WINDOWS + // try to use DllGetVersion() if available in _headers_ + wxDYNLIB_FUNCTION( DLLGETVERSIONPROC, DllGetVersion, dllComCtl32 ); + if ( pfnDllGetVersion ) { - s_hadGuiLock = TRUE; + DLLVERSIONINFO dvi; + dvi.cbSize = sizeof(dvi); - size_t count = s_aSavedMessages.Count(); - for ( size_t n = 0; n < count; n++ ) + HRESULT hr = (*pfnDllGetVersion)(&dvi); + if ( FAILED(hr) ) { - MSG& msg = s_aSavedMessages[n]; + 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; + } + } +#endif - if ( !ProcessMessage((WXMSG *)&msg) ) + // if DllGetVersion() is unavailable either during compile or + // run-time, try to guess the version otherwise + if ( !s_verComCtl32 ) + { + // InitCommonControlsEx is unique to 4.70 and later + void *pfn = dllComCtl32.GetSymbol(_T("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(_T("InitializeFlatSB")); + if ( !pfn ) { - ::TranslateMessage(&msg); - ::DispatchMessage(&msg); + // not found, must be 4.70 + s_verComCtl32 = 470; + } + else + { + // found, must be 4.71 or later + s_verComCtl32 = 471; } } - - s_aSavedMessages.Empty(); } } -#endif // wxUSE_THREADS - - // Process the message - if ( !ProcessMessage((WXMSG *)&s_currentMsg) ) - { - ::TranslateMessage(&s_currentMsg); - wxApp::sm_lastMessageTime = s_currentMsg.time; /* MATTHEW: timeStamp impl. */ - ::DispatchMessage(&s_currentMsg); - } } - return TRUE; + return s_verComCtl32; +#endif // Microwin/!Microwin } -/* - * 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). - */ - -int wxApp::MainLoop() -{ - m_keepGoing = TRUE; - - while ( m_keepGoing ) - { -#if wxUSE_THREADS - wxMutexGuiLeaveOrEnter(); -#endif // wxUSE_THREADS - - while ( !::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) && - ProcessIdle() ) - { - } - - - DoMessage(); - } - - return s_currentMsg.wParam; -} +// Yield to incoming messages -// Returns TRUE if more time is needed. -bool wxApp::ProcessIdle() +bool wxApp::Yield(bool onlyIfNeeded) { - wxIdleEvent event; - event.SetEventObject(this); - ProcessEvent(event); - - return event.MoreRequested(); -} + // MT-FIXME + static bool s_inYield = FALSE; -#if wxUSE_THREADS -void wxApp::ProcessPendingEvents() -{ - wxNode *node = wxPendingEvents->First(); - wxCriticalSectionLocker locker(*wxPendingEventsLocker); +#if wxUSE_LOG + // disable log flushing from here because a call to wxYield() shouldn't + // normally result in message boxes popping up &c + wxLog::Suspend(); +#endif // wxUSE_LOG - while (node) + if ( s_inYield ) { - wxEvtHandler *handler = (wxEvtHandler *)node->Data(); - - handler->ProcessPendingEvents(); - - delete node; - node = wxPendingEvents->First(); - } -} -#endif - - -void wxApp::ExitMainLoop() -{ - m_keepGoing = FALSE; -} - -bool wxApp::Pending() -{ - return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0) ; -} - -void wxApp::Dispatch() -{ - DoMessage(); -} - -/* - * Give all windows a chance to preprocess - * the message. Some may have accelerator tables, or have - * MDI complications. - */ - -bool wxApp::ProcessMessage(WXMSG *wxmsg) -{ - MSG *msg = (MSG *)wxmsg; - HWND hWnd = msg->hwnd; - wxWindow *wndThis = wxFindWinFromHandle((WXHWND)hWnd), *wnd; - - // Try translations first; find the youngest window with - // a translation table. - for ( wnd = wndThis; wnd; wnd = wnd->GetParent() ) - { - if ( wnd->MSWTranslateMessage(wxmsg) ) - return TRUE; - } + if ( !onlyIfNeeded ) + { + wxFAIL_MSG( wxT("wxYield called recursively" ) ); + } - // Anyone for a non-translation message? Try youngest descendants first. - for ( wnd = wndThis; wnd; wnd = wnd->GetParent() ) - { - if ( wnd->MSWProcessMessage(wxmsg) ) - return TRUE; + return FALSE; } - return FALSE; -} - -void wxApp::OnIdle(wxIdleEvent& event) -{ - static bool s_inOnIdle = FALSE; - - // Avoid recursion (via ProcessEvent default case) - if ( s_inOnIdle ) - return; - - s_inOnIdle = TRUE; - - // 'Garbage' collection of windows deleted with Close(). - DeletePendingObjects(); + s_inYield = TRUE; - // flush the logged messages if any - wxLog *pLog = wxLog::GetActiveTarget(); - if ( pLog != NULL && pLog->HasPendingMessages() ) - pLog->Flush(); - - // Send OnIdle events to all windows - if ( SendIdleEvents() ) + // 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 ) { - // SendIdleEvents() returns TRUE if at least one window requested more - // idle events - event.RequestMore(TRUE); - } - - // If they are pending events, we must process them. #if wxUSE_THREADS - ProcessPendingEvents(); -#endif - s_inOnIdle = FALSE; -} - -// Send idle event to all top-level windows -bool wxApp::SendIdleEvents() -{ - bool needMore = FALSE; - - wxWindowList::Node* node = wxTopLevelWindows.GetFirst(); - while (node) - { - wxWindow* win = node->GetData(); - if (SendIdleEvents(win)) - needMore = TRUE; - node = node->GetNext(); - } - - return needMore; -} - -// Send idle event to window and all subwindows -bool wxApp::SendIdleEvents(wxWindow* win) -{ - bool needMore = FALSE; - - wxIdleEvent event; - event.SetEventObject(win); - win->GetEventHandler()->ProcessEvent(event); - - if (event.MoreRequested()) - needMore = TRUE; - - wxNode* node = win->GetChildren().First(); - while (node) - { - wxWindow* win = (wxWindow*) node->Data(); - if (SendIdleEvents(win)) - needMore = TRUE; + wxMutexGuiLeaveOrEnter(); +#endif // wxUSE_THREADS - node = node->Next(); + if ( !wxTheApp->Dispatch() ) + break; } - return needMore ; -} - -void wxApp::DeletePendingObjects() -{ - wxNode *node = wxPendingDelete.First(); - while (node) - { - wxObject *obj = (wxObject *)node->Data(); - delete obj; + // if there are pending events, we must process them. + ProcessPendingEvents(); - if (wxPendingDelete.Member(obj)) - delete node; +#if wxUSE_LOG + // let the logs be flashed again + wxLog::Resume(); +#endif // wxUSE_LOG - // Deleting one object may have deleted other pending - // objects, so start from beginning of list again. - node = wxPendingDelete.First(); - } -} - -void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event)) -{ - if (GetTopWindow()) - GetTopWindow()->Close(TRUE); -} + s_inYield = FALSE; -// Default behaviour: close the application with prompts. The -// user can veto the close, and therefore the end session. -void wxApp::OnQueryEndSession(wxCloseEvent& event) -{ - if (GetTopWindow()) - { - if (!GetTopWindow()->Close(!event.CanVeto())) - event.Veto(TRUE); - } + return TRUE; } -wxLog* wxApp::CreateLogTarget() -{ - return new wxLogGui; -} +#if wxUSE_EXCEPTIONS -wxWindow* wxApp::GetTopWindow() const -{ - if (m_topWindow) - return m_topWindow; - else if (wxTopLevelWindows.GetCount() > 0) - return wxTopLevelWindows.GetFirst()->GetData(); - else - return NULL; -} +// ---------------------------------------------------------------------------- +// exception handling +// ---------------------------------------------------------------------------- -int wxApp::GetComCtl32Version() const +bool wxApp::OnExceptionInMainLoop() { - // have we loaded COMCTL32 yet? - HMODULE theModule = ::GetModuleHandle("COMCTL32"); - int version = 0; - - // if so, then we can check for the version - if (theModule) + // ask the user about what to do: use the Win32 API function here as it + // could be dangerous to use any wxWindows code in this state + switch ( + ::MessageBox + ( + NULL, + _T("An unhandled exception occurred. Press \"Abort\" to \ +terminate the program,\r\n\ +\"Retry\" to exit the program normally and \"Ignore\" to try to continue."), + _T("Unhandled exception"), + MB_ABORTRETRYIGNORE | + MB_ICONERROR| + MB_TASKMODAL + ) + ) { - // InitCommonControlsEx is unique to 4.7 and later - FARPROC theProc = ::GetProcAddress(theModule, "InitCommonControlsEx"); + case IDABORT: + throw; - if (! theProc) - { // not found, must be 4.00 - version = 400; - } - else - { - // The following symbol are unique to 4.71 - // DllInstall - // FlatSB_EnableScrollBar FlatSB_GetScrollInfo FlatSB_GetScrollPos - // FlatSB_GetScrollProp FlatSB_GetScrollRange FlatSB_SetScrollInfo - // FlatSB_SetScrollPos FlatSB_SetScrollProp FlatSB_SetScrollRange - // FlatSB_ShowScrollBar - // _DrawIndirectImageList _DuplicateImageList - // InitializeFlatSB - // UninitializeFlatSB - // we could check for any of these - I chose DllInstall - FARPROC theProc = ::GetProcAddress(theModule, "DllInstall"); - if (! theProc) - { - // not found, must be 4.70 - version = 470; - } - else - { // found, must be 4.71 - version = 471; - } - } - } - return version; -} + default: + wxFAIL_MSG( _T("unexpected MessageBox() return code") ); + // fall through -void wxExit() -{ - wxLogError(_("Fatal error: exiting")); - - wxApp::CleanUp(); -} + case IDRETRY: + return false; -// Yield to incoming messages -bool wxYield() -{ - MSG msg; - // We want to go back to the main message loop - // if we see a WM_QUIT. (?) - while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) && msg.message != WM_QUIT) - { - if ( !wxTheApp->DoMessage() ) - break; + case IDIGNORE: + return true; } - // If they are pending events, we must process them. -#if wxUSE_THREADS - ProcessPendingEvents(); -#endif - - return TRUE; } -HINSTANCE wxGetInstance() -{ - return wxhInstance; -} - -void wxSetInstance(HINSTANCE hInst) -{ - wxhInstance = hInst; -} - -// 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__)) -#include "main.cpp" -#endif +#endif // wxUSE_EXCEPTIONS