X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bee503b05f2e67035e1f45bd33e94451daeceb31..9d5507f7a2701395e1d5c121bd877bb9066ee6ea:/src/msw/app.cpp diff --git a/src/msw/app.cpp b/src/msw/app.cpp index e795e42453..ef5379e82b 100644 --- a/src/msw/app.cpp +++ b/src/msw/app.cpp @@ -1,1113 +1,837 @@ ///////////////////////////////////////////////////////////////////////////// -// 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 ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "app.h" -#endif +// =========================================================================== +// declarations +// =========================================================================== + +// --------------------------------------------------------------------------- +// headers +// --------------------------------------------------------------------------- // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #if defined(__BORLANDC__) -#pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP - #include "wx/frame.h" - #include "wx/app.h" - #include "wx/utils.h" - #include "wx/gdicmn.h" - #include "wx/pen.h" - #include "wx/brush.h" - #include "wx/cursor.h" - #include "wx/icon.h" - #include "wx/palette.h" - #include "wx/dc.h" - #include "wx/dialog.h" - #include "wx/msgdlg.h" + #include "wx/msw/wrapcctl.h" + #include "wx/dynarray.h" + #include "wx/frame.h" + #include "wx/app.h" + #include "wx/utils.h" + #include "wx/gdicmn.h" + #include "wx/pen.h" + #include "wx/brush.h" + #include "wx/cursor.h" + #include "wx/icon.h" + #include "wx/palette.h" + #include "wx/dc.h" + #include "wx/dialog.h" + #include "wx/msgdlg.h" + #include "wx/intl.h" + #include "wx/crt.h" + #include "wx/log.h" + #include "wx/module.h" #endif -#include "wx/msw/private.h" -#include "wx/log.h" -#include "wx/module.h" +#include "wx/apptrait.h" +#include "wx/filename.h" +#include "wx/dynlib.h" +#include "wx/evtloop.h" +#include "wx/thread.h" -#if wxUSE_THREADS - #include "wx/thread.h" +#include "wx/msw/private.h" +#include "wx/msw/ole/oleutils.h" +#include "wx/msw/private/timer.h" - // define the array of MSG strutures - WX_DECLARE_OBJARRAY(MSG, wxMsgArray); +#if wxUSE_TOOLTIPS + #include "wx/tooltip.h" +#endif // wxUSE_TOOLTIPS - #include "wx/arrimpl.cpp" +// 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 - WX_DEFINE_OBJARRAY(wxMsgArray); -#endif // wxUSE_THREADS + #define wxUSE_OLE 0 +#endif // broken compilers -#if wxUSE_WX_RESOURCES - #include "wx/resource.h" +#if defined(__POCKETPC__) || defined(__SMARTPHONE__) + #include + #include #endif -// To UG: there's no point in putting this #if here -// if you don't do the same for the Ole calls further down. -// Also, OLE is used not just for drag and drop (it's used by automatn.cpp). -// #if wxUSE_DRAG_AND_DROP -#if !defined(__GNUWIN32__) && !defined(__SC__) -#include +#if wxUSE_OLE + #include #endif -// #endif #include #include -#if defined(__WIN95__) && !defined(__GNUWIN32__) - #include +#include "wx/msw/missing.h" + +// 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 +// +// 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) + + +// --------------------------------------------------------------------------- +// global variables +// --------------------------------------------------------------------------- + +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) +extern void wxSetKeyboardHook(bool doIt); #endif -// use debug CRT functions for memory leak detections in VC++ if we're not -// using wxWindows own methods -#if defined(__WXDEBUG__) && defined(_MSC_VER) && !wxUSE_GLOBAL_MEMORY_OPERATORS && !defined(__NO_VC_CRTDBG__) - #define wxUSE_VC_CRTDBG +// NB: all "NoRedraw" classes must have the same names as the "normal" classes +// with NR suffix - wxWindow::MSWCreate() supposes this +#ifdef __WXWINCE__ +WXDLLIMPEXP_CORE wxChar *wxCanvasClassName; +WXDLLIMPEXP_CORE wxChar *wxCanvasClassNameNR; #else - #undef wxUSE_VC_CRTDBG +WXDLLIMPEXP_CORE const wxChar *wxCanvasClassName = wxT("wxWindowClass"); +WXDLLIMPEXP_CORE const wxChar *wxCanvasClassNameNR = wxT("wxWindowClassNR"); #endif +WXDLLIMPEXP_CORE const wxChar *wxMDIFrameClassName = wxT("wxMDIFrameClass"); +WXDLLIMPEXP_CORE const wxChar *wxMDIFrameClassNameNoRedraw = wxT("wxMDIFrameClassNR"); +WXDLLIMPEXP_CORE const wxChar *wxMDIChildFrameClassName = wxT("wxMDIChildFrameClass"); +WXDLLIMPEXP_CORE const wxChar *wxMDIChildFrameClassNameNoRedraw = wxT("wxMDIChildFrameClassNR"); -#ifdef wxUSE_VC_CRTDBG - // VC++ uses this macro as debug/release mode indicator - #ifndef _DEBUG - #define _DEBUG - #endif +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- - /* Need to undef new if including crtdbg.h */ - #ifdef new - #undef new - #endif +LRESULT WXDLLEXPORT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM); - #include +// =========================================================================== +// wxGUIAppTraits implementation +// =========================================================================== - #if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS - #define new new(__FILE__,__LINE__) - #endif +// private class which we use to pass parameters from BeforeChildWaitLoop() to +// AfterChildWaitLoop() +struct ChildWaitLoopData +{ + ChildWaitLoopData(wxWindowDisabler *wd_, wxWindow *winActive_) + { + wd = wd_; + winActive = winActive_; + } -#endif + wxWindowDisabler *wd; + wxWindow *winActive; +}; -extern char *wxBuffer; -extern char *wxOsVersion; -extern wxList *wxWinHandleList; -extern wxList WXDLLEXPORT wxPendingDelete; -extern void wxSetKeyboardHook(bool doIt); -extern wxCursor *g_globalCursor; +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); +} -HINSTANCE wxhInstance = 0; -static MSG s_currentMsg; -wxApp *wxTheApp = NULL; +void wxGUIAppTraits::AlwaysYield() +{ + wxYield(); +} -// @@ why not const? and not static? -char wxFrameClassName[] = "wxFrameClass"; -char wxMDIFrameClassName[] = "wxMDIFrameClass"; -char wxMDIChildFrameClassName[] = "wxMDIChildFrameClass"; -char wxPanelClassName[] = "wxPanelClass"; -char wxCanvasClassName[] = "wxCanvasClass"; +void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig) +{ + wxEndBusyCursor(); -HICON wxSTD_FRAME_ICON = NULL; -HICON wxSTD_MDICHILDFRAME_ICON = NULL; -HICON wxSTD_MDIPARENTFRAME_ICON = NULL; + ChildWaitLoopData * const data = (ChildWaitLoopData *)dataOrig; -HICON wxDEFAULT_FRAME_ICON = NULL; -HICON wxDEFAULT_MDICHILDFRAME_ICON = NULL; -HICON wxDEFAULT_MDIPARENTFRAME_ICON = NULL; + delete data->wd; -HBRUSH wxDisableButtonBrush = 0; + // 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(); -LRESULT APIENTRY wxWndProc(HWND, UINT, WPARAM, LPARAM); + // also delete the temporary data object itself + delete data; +} -#if !USE_SHARED_LIBRARY - IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) +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 + wxEventLoopBase * const evtLoop = wxEventLoop::GetActive(); + if ( !evtLoop || !evtLoop->Pending() ) + { + // no events means no quit event + return true; + } - BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) - EVT_IDLE(wxApp::OnIdle) - EVT_END_SESSION(wxApp::OnEndSession) - EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession) - END_EVENT_TABLE() -#endif + return evtLoop->Dispatch(); +} -long wxApp::sm_lastMessageTime = 0; +DWORD wxGUIAppTraits::WaitForThread(WXHANDLE hThread) +{ + // if we don't have a running event loop, we shouldn't wait for the + // messages as we never remove them from the message queue and so we enter + // an infinite loop as MsgWaitForMultipleObjects() keeps returning + // WAIT_OBJECT_0 + 1 + if ( !wxEventLoop::GetActive() ) + return DoSimpleWaitForThread(hThread); + + 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 + ); +} -#ifdef __WIN95__ - static HINSTANCE gs_hRichEdit = NULL; +wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const +{ + OSVERSIONINFO info; + wxZeroMemory(info); + + // 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) ) + { + if ( majVer ) + *majVer = info.dwMajorVersion; + if ( minVer ) + *minVer = info.dwMinorVersion; + } + +#if defined(__WXHANDHELD__) || defined(__WXWINCE__) + return wxPORT_WINCE; +#else + return wxPORT_MSW; #endif +} -//// Initialize +#if wxUSE_TIMER -bool wxApp::Initialize() +wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer) { - // Some people may wish to use this, but - // probably it shouldn't be here by default. -#ifdef __WXDEBUG__ -// wxRedirectIOToConsole(); -#endif + return new wxMSWTimerImpl(timer); +} - wxBuffer = new char[1500]; +#endif // wxUSE_TIMER -#ifdef wxUSE_VC_CRTDBG - // 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) - _CrtSetDbgFlag(_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG) | _CRTDBG_LEAK_CHECK_DF); -#endif // debug build under MS VC++ +wxEventLoopBase* wxGUIAppTraits::CreateEventLoop() +{ + return new wxEventLoop; +} - wxClassInfo::InitializeClasses(); +// =========================================================================== +// wxApp implementation +// =========================================================================== -#if wxUSE_RESOURCES - wxGetResource("wxWindows", "OsVersion", &wxOsVersion); -#endif +int wxApp::m_nCmdShow = SW_SHOWNORMAL; - wxTheColourDatabase = new wxColourDatabase(wxKEY_STRING); - wxTheColourDatabase->Initialize(); +// --------------------------------------------------------------------------- +// wxWin macros +// --------------------------------------------------------------------------- - wxInitializeStockLists(); - wxInitializeStockObjects(); +IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) -#if wxUSE_WX_RESOURCES - wxInitializeResourceSystem(); -#endif +BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) + EVT_IDLE(wxApp::OnIdle) + EVT_END_SESSION(wxApp::OnEndSession) + EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession) +END_EVENT_TABLE() - wxBitmap::InitStandardHandlers(); +// 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(); } -#if defined(__WIN95__) - InitCommonControls(); - gs_hRichEdit = LoadLibrary("RICHED32.DLL"); + void Dismiss() { m_app = NULL; } - if (gs_hRichEdit == NULL) - { - wxMessageBox("Could not initialise Rich Edit DLL"); - } -#endif +private: + wxApp *m_app; +}; - int iMsg = 96; - - // for OLE, enlarge message queue to be as large as possible - while (!SetMessageQueue(iMsg) && (iMsg -= 8)); - -/* - DWORD dwOleVer; - dwOleVer = CoBuildVersion(); - - // check the OLE library version - if (rmm != HIWORD(dwOleVer)) +//// Initialize +bool wxApp::Initialize(int& argc, wxChar **argv) +{ + if ( !wxAppBase::Initialize(argc, argv) ) + return false; + + // ensure that base cleanup is done if we return too early + wxCallBaseCleanup callBaseCleanup(this); + +#ifdef __WXWINCE__ + wxString tmp = GetAppName(); + tmp += wxT("ClassName"); + wxCanvasClassName = wxStrdup( tmp.wc_str() ); + tmp += wxT("NR"); + wxCanvasClassNameNR = wxStrdup( tmp.wc_str() ); + HWND hWnd = FindWindow( wxCanvasClassNameNR, NULL ); + if (hWnd) { - wxMessageBox("Incorrect version of OLE libraries."); - return FALSE; + SetForegroundWindow( (HWND)(((DWORD)hWnd)|0x01) ); + return false; } -*/ - -#if !defined(__GNUWIN32__) && !defined(__SC__) - // we need to initialize OLE library - if ( FAILED(::OleInitialize(NULL)) ) - wxFatalError(_("Cannot initialize OLE")); #endif -#if CTL3D - if (!Ctl3dRegister(wxhInstance)) - wxFatalError("Cannot register CTL3D"); +#if !defined(__WXMICROWIN__) + InitCommonControls(); +#endif // !defined(__WXMICROWIN__) - Ctl3dAutoSubclass(wxhInstance); +#if defined(__SMARTPHONE__) || defined(__POCKETPC__) + SHInitExtraControls(); #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"); +#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 - wxDEFAULT_FRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_FRAME"); - wxDEFAULT_MDIPARENTFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDIPARENTFRAME"); - wxDEFAULT_MDICHILDFRAME_ICON = LoadIcon(wxhInstance, "wxDEFAULT_MDICHILDFRAME"); + wxOleInitialize(); RegisterWindowClasses(); - // Create the brush for disabling bitmap buttons + wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100); - LOGBRUSH lb ; - lb.lbStyle = BS_PATTERN; - lb.lbHatch = (int)LoadBitmap( wxhInstance, "wxDISABLE_BUTTON_BITMAP" ) ; - wxDisableButtonBrush = ::CreateBrushIndirect( & lb ) ; - ::DeleteObject( (HGDIOBJ)lb.lbHatch ) ; - -#if wxUSE_PENWINDOWS - wxRegisterPenWin(); -#endif - - wxWinHandleList = new wxList(wxKEY_INTEGER); - - // This is to foil optimizations in Visual C++ that - // throw out dummy.obj. -#if (_MSC_VER >= 800) && !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.style = CS_HREDRAW | CS_VREDRAW; - wndclass.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass.cbClsExtra = 0; - wndclass.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass.hInstance = wxhInstance; - wndclass.hIcon = NULL; // wxSTD_FRAME_ICON; - wndclass.hCursor = LoadCursor( 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; - - if (!RegisterClass( &wndclass )) - { - // wxFatalError("Can't register Frame Window class"); - } - -/////////////////////////////////////////////////////////////////////// -// Register the MDI frame window class. - WNDCLASS wndclass1; // Structure used to register Windows class. - - wndclass1.style = CS_HREDRAW | CS_VREDRAW; - wndclass1.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass1.cbClsExtra = 0; - wndclass1.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass1.hInstance = wxhInstance; - wndclass1.hIcon = NULL; // wxSTD_MDIPARENTFRAME_ICON; - wndclass1.hCursor = LoadCursor( NULL, IDC_ARROW ); -// wndclass1.hbrBackground = (HBRUSH)(COLOR_APPWORKSPACE+1) ; - wndclass1.hbrBackground = NULL; - wndclass1.lpszMenuName = NULL; - - wndclass1.lpszClassName = wxMDIFrameClassName; - if (!RegisterClass( &wndclass1 )) - { -// wxFatalError("Can't register MDI Frame window class"); -// return FALSE; - } - -/////////////////////////////////////////////////////////////////////// -// Register the MDI child frame window class. - WNDCLASS wndclass4; // Structure used to register Windows class. - - wndclass4.style = CS_HREDRAW | CS_VREDRAW; - wndclass4.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass4.cbClsExtra = 0; - wndclass4.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass4.hInstance = wxhInstance; - wndclass4.hIcon = NULL; // wxSTD_MDICHILDFRAME_ICON; - wndclass4.hCursor = LoadCursor( 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 )) - { -// wxFatalError("Can't register MDI child frame window class"); -// return FALSE; - } - -/////////////////////////////////////////////////////////////////////// -// Register the panel window class. - WNDCLASS wndclass2; // Structure used to register Windows class. - memset(&wndclass2, 0, sizeof(WNDCLASS)); // start with NULL defaults - // Use CS_OWNDC to avoid messing about restoring the context - // for every graphic operation. - wndclass2.style = CS_HREDRAW | CS_VREDRAW; - wndclass2.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass2.cbClsExtra = 0; - wndclass2.cbWndExtra = sizeof( DWORD ); // was 4 - wndclass2.hInstance = wxhInstance; - wndclass2.hIcon = NULL; - wndclass2.hCursor = NULL; -// wndclass2.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1) ; - wndclass2.hbrBackground = (HBRUSH) GetStockObject( LTGRAY_BRUSH ); - wndclass2.lpszMenuName = NULL; - wndclass2.lpszClassName = wxPanelClassName; - if (!RegisterClass( &wndclass2 )) - { -// wxFatalError("Can't register Panel Window class"); -// return FALSE; - } - -/////////////////////////////////////////////////////////////////////// -// 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 = NULL; - wndclass3.hCursor = NULL; -// wndclass3.hbrBackground = (HBRUSH)(COLOR_WINDOW+1) ; - wndclass3.hbrBackground = NULL; - wndclass3.lpszMenuName = NULL; - wndclass3.lpszClassName = wxCanvasClassName; - if (!RegisterClass( &wndclass3)) - { -// wxFatalError("Can't register Canvas class"); -// return FALSE; - } - - return TRUE; -} + WNDCLASS wndclass; + wxZeroMemory(wndclass); -//// Convert Windows to argc, argv style + // 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; -void wxApp::ConvertToStandardCommandArgs(char* lpCmdLine) -{ - wxStringList args; + // the fields which are common to all classes + wndclass.lpfnWndProc = (WNDPROC)wxWndProc; + wndclass.hInstance = wxhInstance; + wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW); - wxString cmdLine(lpCmdLine); - int count = 0; + // register the class for all normal windows + wndclass.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1); + wndclass.lpszClassName = wxCanvasClassName; + wndclass.style = styleNormal; - // Get application name - char name[260]; // 260 is MAX_PATH value from windef.h - ::GetModuleFileName(wxhInstance, name, WXSIZEOF(name)); - - // GNUWIN32 already fills in the first arg with the application name. -#if !defined(__GNUWIN32__) - args.Add(name); - count ++; -#endif + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(frame)")); + } - strcpy(name, wxFileNameFromPath(name)); - wxStripExtension(name); - wxTheApp->SetAppName(name); + // "no redraw" frame + wndclass.lpszClassName = wxCanvasClassNameNR; + wndclass.style = styleNoRedraw; - // Break up string - // Treat strings enclosed in double-quotes as single arguments - int i = 0; - int len = cmdLine.Length(); - while (i < len) + if ( !RegisterClass(&wndclass) ) { - // Skip whitespace - while ((i < len) && isspace(cmdLine.GetChar(i))) - i ++; + wxLogLastError(wxT("RegisterClass(no redraw frame)")); + } - 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 ++; + // Register the MDI frame window class. + wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves + wndclass.lpszClassName = wxMDIFrameClassName; + wndclass.style = styleNormal; - wxString arg(cmdLine.Mid(first, (i - first))); + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(MDI parent)")); + } - args.Add(arg); - count ++; + // "no redraw" MDI frame + wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw; + wndclass.style = styleNoRedraw; - if (i < len) - i ++; // Skip past 2nd quote - } - else // Unquoted argument - { - int first = i; - while ((i < len) && !isspace(cmdLine.GetChar(i))) - i ++; + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(no redraw MDI parent frame)")); + } - wxString arg(cmdLine.Mid(first, (i - first))); + // Register the MDI child frame window class. + wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); + wndclass.lpszClassName = wxMDIChildFrameClassName; + wndclass.style = styleNormal; - args.Add(arg); - count ++; - } - } + if ( !RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(MDI child)")); } - wxTheApp->argv = new char*[count + 1]; - for (i = 0; i < count; i++) + // "no redraw" MDI child frame + wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw; + wndclass.style = styleNoRedraw; + + if ( !RegisterClass(&wndclass) ) { - wxString arg(args[i]); - wxTheApp->argv[i] = copystring((const char*)arg); + wxLogLastError(wxT("RegisterClass(no redraw MDI child)")); } - wxTheApp->argv[count] = NULL; // argv[] is a NULL-terminated list - wxTheApp->argc = count; + + return true; } -//// Cleans up any wxWindows internal structures left lying around +// --------------------------------------------------------------------------- +// UnregisterWindowClasses +// --------------------------------------------------------------------------- -void wxApp::CleanUp() +bool wxApp::UnregisterWindowClasses() { - //// COMMON CLEANUP - wxModule::CleanUpModules(); - -#if wxUSE_WX_RESOURCES - wxCleanUpResourceSystem(); + bool retval = true; -// 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; - - wxDeleteStockObjects() ; +#ifndef __WXMICROWIN__ + // MDI frame window class. + if ( !::UnregisterClass(wxMDIFrameClassName, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(MDI parent)")); - // Destroy all GDI lists, etc. - wxDeleteStockLists(); + retval = false; + } - delete wxTheColourDatabase; - wxTheColourDatabase = NULL; + // "no redraw" MDI frame + if ( !::UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)")); - wxBitmap::CleanUpHandlers(); + retval = false; + } - delete[] wxBuffer; - wxBuffer = NULL; + // MDI child frame window class. + if ( !::UnregisterClass(wxMDIChildFrameClassName, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(MDI child)")); - //// WINDOWS-SPECIFIC CLEANUP + retval = false; + } - wxSetKeyboardHook(FALSE); + // "no redraw" MDI child frame + if ( !::UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(no redraw MDI child)")); -#ifdef __WIN95__ - if (gs_hRichEdit != NULL) - FreeLibrary(gs_hRichEdit); -#endif + retval = false; + } -#if wxUSE_PENWINDOWS - wxCleanUpPenWin(); -#endif + // canvas class name + if ( !::UnregisterClass(wxCanvasClassName, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(canvas)")); - 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 ) ; - -#if !defined(__GNUWIN32__) && !defined(__SC__) - ::OleUninitialize(); -#endif + retval = false; + } -#if CTL3D - Ctl3dUnregister(wxhInstance); -#endif + if ( !::UnregisterClass(wxCanvasClassNameNR, wxhInstance) ) + { + wxLogLastError(wxT("UnregisterClass(no redraw canvas)")); - if (wxWinHandleList) - delete wxWinHandleList ; - - wxClassInfo::CleanUpClasses(); - - 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() > 0) - { - wxLogDebug("There were memory leaks."); - wxDebugContext::Dump(); - wxDebugContext::PrintStatistics(); - } -// wxDebugContext::SetStream(NULL, NULL); -#endif + retval = false; + } +#endif // __WXMICROWIN__ - // do it as the very last thing because everything else can log messages - wxLog::DontCreateOnDemand(); - delete wxLog::SetActiveTarget(NULL); + return retval; } -#if !defined(_WINDLL) || (defined(_WINDLL) && defined(WXMAKINGDLL)) - -//// Main wxWindows entry point -int wxEntry(WXHINSTANCE hInstance, - WXHINSTANCE WXUNUSED(hPrevInstance), - char *lpCmdLine, - int nCmdShow, - bool enterLoop) +void wxApp::CleanUp() { -#if !defined(__WXDEBUG__) && !defined(__BORLANDC__) && !defined(__WATCOMC__) // take everything into a try-except block in release build - try { + // 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); #endif - wxhInstance = (HINSTANCE) hInstance; + wxOleUninitialize(); - if (!wxApp::Initialize()) - return 0; + // 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(); - // 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: 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(); - - // flush the logged messages if any - wxLog *pLog = wxLog::GetActiveTarget(); - if ( pLog != NULL && pLog->HasPendingMessages() ) - pLog->Flush(); - - - wxApp::CleanUp(); - - return retValue; -#if !defined(__WXDEBUG__) && !defined(__BORLANDC__) && !defined(__WATCOMC__) // catch exceptions only in release build - } - except ( EXCEPTION_EXECUTE_HANDLER ) { - /* - if ( wxTheApp ) - wxTheApp->OnFatalException(); - */ + delete wxWinHandleHash; + wxWinHandleHash = NULL; - ::ExitProcess(3); // the same exit code as abort() - } -#endif //debug +#ifdef __WXWINCE__ + free( wxCanvasClassName ); + free( wxCanvasClassNameNR ); +#endif } -#else /* _WINDLL */ +// ---------------------------------------------------------------------------- +// wxApp ctor/dtor +// ---------------------------------------------------------------------------- -//// Entry point for DLLs +wxApp::wxApp() +{ + m_printMode = wxPRINT_WINDOWS; +} -int wxEntry(WXHINSTANCE hInstance) +wxApp::~wxApp() { - wxhInstance = (HINSTANCE) hInstance; - wxApp::Initialize(); +} + +// ---------------------------------------------------------------------------- +// wxApp idle handling +// ---------------------------------------------------------------------------- - // 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. +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)) + wxMSWDCImpl::ClearCache(); +#endif // wxUSE_DC_CACHEING +} - if (!wxTheApp) - { - if (!wxApp::GetInitializerFunction()) +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 ) { - MessageBox(NULL, "No initializer - use IMPLEMENT_APP macro.", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK); - return 0; + if ( !::PostMessage(GetHwndOf(topWindow), WM_NULL, 0, 0) ) + { + // should never happen + wxLogLastError(wxT("PostMessage(WM_NULL)")); + } } +} - wxTheApp = (* wxApp::GetInitializerFunction()) (); - } +// ---------------------------------------------------------------------------- +// other wxApp event hanlders +// ---------------------------------------------------------------------------- - if (!wxTheApp) { - MessageBox(NULL, "You have to define an instance of wxApp!", "wxWindows Error", MB_APPLMODAL | MB_ICONSTOP | MB_OK); - return 0; - } +void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event)) +{ + if (GetTopWindow()) + GetTopWindow()->Close(true); +} - wxTheApp->argc = 0; - wxTheApp->argv = NULL; +// 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); + } +} - wxTheApp->OnInitGui(); +// ---------------------------------------------------------------------------- +// system DLL versions +// ---------------------------------------------------------------------------- - wxTheApp->OnInit(); +#if wxUSE_DYNLIB_CLASS - if (wxTheApp->GetTopWindow() && wxTheApp->GetTopWindow()->GetHWND()) { - wxTheApp->GetTopWindow()->Show(TRUE); - } +namespace +{ - return 1; -} -#endif // _WINDLL +// helper function: retrieve the DLL version by using DllGetVersion(), returns +// 0 if the DLL doesn't export such function +int CallDllGetVersion(wxDynamicLibrary& dll) +{ + // now check if the function is available during run-time + wxDYNLIB_FUNCTION( DLLGETVERSIONPROC, DllGetVersion, dll ); + if ( !pfnDllGetVersion ) + return 0; -//// Static member initialization + DLLVERSIONINFO dvi; + dvi.cbSize = sizeof(dvi); -wxAppInitializerFunction wxApp::m_appInitFn = (wxAppInitializerFunction) NULL; + HRESULT hr = (*pfnDllGetVersion)(&dvi); + if ( FAILED(hr) ) + { + wxLogApiError(_T("DllGetVersion"), hr); -wxApp::wxApp() -{ - 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; -} + return 0; + } -wxApp::~wxApp() -{ - // Delete command-line args - int i; - for (i = 0; i < argc; i++) - { - delete[] argv[i]; - } - delete[] argv; + return 100*dvi.dwMajorVersion + dvi.dwMinorVersion; } -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 -} +} // anonymous namespace -/* - * 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; - - return FALSE; - } - else if ( rc == -1 ) - { - // should never happen, but let's test for it nevertheless - wxLogLastError("GetMessage"); - } - else - { -#if wxUSE_THREADS - wxASSERT_MSG( wxThread::IsMain(), - "only the main thread can process Windows messages" ); + // 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; - static bool s_hadGuiLock = TRUE; - static wxMsgArray s_aSavedMessages; + if ( s_verComCtl32 == -1 ) + { + // we're prepared to handle the errors + wxLogNull noLog; - // 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() ) + // the DLL should really be available + wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM); + if ( !dllComCtl32.IsLoaded() ) { - s_hadGuiLock = FALSE; + s_verComCtl32 = 0; + return 0; + } - s_aSavedMessages.Add(s_currentMsg); + // try DllGetVersion() for recent DLLs + s_verComCtl32 = CallDllGetVersion(dllComCtl32); - return TRUE; - } - else + // if DllGetVersion() is unavailable either during compile or + // run-time, try to guess the version otherwise + if ( !s_verComCtl32 ) { - // 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 ) + // InitCommonControlsEx is unique to 4.70 and later + void *pfn = dllComCtl32.GetSymbol(_T("InitCommonControlsEx")); + if ( !pfn ) { - s_hadGuiLock = TRUE; - - size_t count = s_aSavedMessages.Count(); - for ( size_t n = 0; n < count; n++ ) + // 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 ) { - MSG& msg = s_aSavedMessages[n]; - - if ( !ProcessMessage((WXMSG *)&msg) ) - { - ::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; } -/* - * 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() +/* static */ +int wxApp::GetShell32Version() { - m_keepGoing = TRUE; - - while ( m_keepGoing ) - { - #if wxUSE_THREADS - wxMutexGuiLeaveOrEnter(); - #endif // wxUSE_THREADS - - while ( !::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) && - ProcessIdle() ) + static int s_verShell32 = -1; + if ( s_verShell32 == -1 ) { - } + // we're prepared to handle the errors + wxLogNull noLog; - DoMessage(); - } - - return s_currentMsg.wParam; -} + wxDynamicLibrary dllShell32(_T("shell32.dll"), wxDL_VERBATIM); + if ( dllShell32.IsLoaded() ) + { + s_verShell32 = CallDllGetVersion(dllShell32); -// Returns TRUE if more time is needed. -bool wxApp::ProcessIdle() -{ - wxIdleEvent event; - event.SetEventObject(this); - ProcessEvent(event); + 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? + { + s_verShell32 = 0; + } + } - return event.MoreRequested(); + return s_verShell32; } -void wxApp::ExitMainLoop() -{ - m_keepGoing = FALSE; -} +#else // !wxUSE_DYNLIB_CLASS -bool wxApp::Pending() +/* static */ +int wxApp::GetComCtl32Version() { - return (::PeekMessage(&s_currentMsg, 0, 0, 0, PM_NOREMOVE) != 0) ; + return 0; } -void wxApp::Dispatch() +/* static */ +int wxApp::GetShell32Version() { - DoMessage(); + return 0; } -/* - * Give all windows a chance to preprocess - * the message. Some may have accelerator tables, or have - * MDI complications. - */ -bool wxApp::ProcessMessage(WXMSG *Msg) -{ - MSG *msg = (MSG *)Msg; - - HWND hWnd; - - // Try translations first; find the youngest window with - // a translation table. - for (hWnd = msg->hwnd; hWnd != NULL; hWnd = ::GetParent(hWnd)) - { - wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd); - if (wnd) - { - if (wnd->MSWTranslateMessage(Msg)) - return TRUE; - } - } +#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS - // Anyone for a non-translation message? Try youngest descendants first. - for (hWnd = msg->hwnd; hWnd != NULL; hWnd = ::GetParent(hWnd)) - { - wxWindow *wnd = wxFindWinFromHandle((WXHWND) hWnd); - if (wnd) - { - if (wnd->MSWProcessMessage(Msg)) - return TRUE; - } - } - return FALSE; -} +// ---------------------------------------------------------------------------- +// Yield to incoming messages +// ---------------------------------------------------------------------------- -void wxApp::OnIdle(wxIdleEvent& event) +bool wxApp::Yield(bool onlyIfNeeded) { - static bool s_inOnIdle = FALSE; - - // Avoid recursion (via ProcessEvent default case) - if ( s_inOnIdle ) - return; - - s_inOnIdle = TRUE; + // MT-FIXME + static bool s_inYield = false; - // 'Garbage' collection of windows deleted with Close(). - DeletePendingObjects(); +#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 - // 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() ) + if ( s_inYield ) { - // SendIdleEvents() returns TRUE if at least one window requested more - // idle events - event.RequestMore(TRUE); + if ( !onlyIfNeeded ) + { + wxFAIL_MSG( wxT("wxYield called recursively" ) ); + } + + return false; } - s_inOnIdle = FALSE; -} + s_inYield = true; -// Send idle event to all top-level windows -bool wxApp::SendIdleEvents() -{ - bool needMore = FALSE; - wxNode* node = wxTopLevelWindows.First(); - while (node) + // 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 ) { - wxWindow* win = (wxWindow*) node->Data(); - if (SendIdleEvents(win)) - needMore = TRUE; +#if wxUSE_THREADS + wxMutexGuiLeaveOrEnter(); +#endif // wxUSE_THREADS - node = node->Next(); + if ( !wxTheApp->Dispatch() ) + break; } - return needMore; -} - -// Send idle event to window and all subwindows -bool wxApp::SendIdleEvents(wxWindow* win) -{ - bool needMore = FALSE; + // if there are pending events, we must process them. + ProcessPendingEvents(); - wxIdleEvent event; - event.SetEventObject(win); - win->GetEventHandler()->ProcessEvent(event); +#if wxUSE_LOG + // let the logs be flashed again + wxLog::Resume(); +#endif // wxUSE_LOG - if (event.MoreRequested()) - needMore = TRUE; + s_inYield = false; - wxNode* node = win->GetChildren().First(); - while (node) - { - wxWindow* win = (wxWindow*) node->Data(); - if (SendIdleEvents(win)) - needMore = TRUE; - - node = node->Next(); - } - return needMore ; + return true; } -void wxApp::DeletePendingObjects() -{ - wxNode *node = wxPendingDelete.First(); - while (node) - { - wxObject *obj = (wxObject *)node->Data(); - - delete obj; - - if (wxPendingDelete.Member(obj)) - delete node; +#if wxUSE_EXCEPTIONS - // Deleting one object may have deleted other pending - // objects, so start from beginning of list again. - node = wxPendingDelete.First(); - } -} - -void wxApp::OnEndSession(wxCloseEvent& event) -{ - if (GetTopWindow()) - GetTopWindow()->Close(TRUE); -} +// ---------------------------------------------------------------------------- +// exception handling +// ---------------------------------------------------------------------------- -// Default behaviour: close the application with prompts. The -// user can veto the close, and therefore the end session. -void wxApp::OnQueryEndSession(wxCloseEvent& event) +bool wxApp::OnExceptionInMainLoop() { - if (GetTopWindow()) + // 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, + _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 + ) + ) { - if (!GetTopWindow()->Close(!event.CanVeto())) - event.Veto(TRUE); - } -} - -wxLog* wxApp::CreateLogTarget() -{ - return new wxLogGui; -} + case IDABORT: + throw; -wxWindow* wxApp::GetTopWindow() const -{ - if (m_topWindow) - return m_topWindow; - else if (wxTopLevelWindows.Number() > 0) - return (wxWindow*) wxTopLevelWindows.First()->Data(); - else - return NULL; -} + default: + wxFAIL_MSG( _T("unexpected MessageBox() return code") ); + // fall through -int wxApp::GetComCtl32Version() const -{ - // have we loaded COMCTL32 yet? - HMODULE theModule = ::GetModuleHandle("COMCTL32"); - int version = 0; + case IDRETRY: + return false; - // if so, then we can check for the version - if (theModule) - { - // InitCommonControlsEx is unique to 4.7 and later - FARPROC theProc = ::GetProcAddress(theModule, "InitCommonControlsEx"); - - 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; - } - } + case IDIGNORE: + return true; } - return version; } -void wxExit() -{ - wxApp::CleanUp(); - FatalAppExit(0, "Fatal error: exiting"); -} - -// 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; - } - - return TRUE; -} - -HINSTANCE wxGetInstance() -{ - return wxhInstance; -} - -// 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(_MSC_VER) && !defined(__WIN32__)) || defined(__GNUWIN32__) - #include "main.cpp" -#endif +#endif // wxUSE_EXCEPTIONS