X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7a4d2469f9de94f3365946a570ef7abbcd900586..d485bda109d5ef0fef36a3f737549e9b9f54baab:/src/msw/app.cpp diff --git a/src/msw/app.cpp b/src/msw/app.cpp index bc230fe152..633722e016 100644 --- a/src/msw/app.cpp +++ b/src/msw/app.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: app.cpp +// Name: src/msw/app.cpp // Purpose: wxApp // Author: Julian Smart // Modified by: @@ -17,10 +17,6 @@ // headers // --------------------------------------------------------------------------- -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "app.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -29,6 +25,8 @@ #endif #ifndef WX_PRECOMP + #include "wx/msw/wrapcctl.h" + #include "wx/dynarray.h" #include "wx/frame.h" #include "wx/app.h" #include "wx/utils.h" @@ -42,18 +40,23 @@ #include "wx/dialog.h" #include "wx/msgdlg.h" #include "wx/intl.h" - #include "wx/dynarray.h" - #include "wx/wxchar.h" - #include "wx/icon.h" + #include "wx/crt.h" #include "wx/log.h" + #include "wx/module.h" #endif #include "wx/apptrait.h" #include "wx/filename.h" -#include "wx/module.h" #include "wx/dynlib.h" +#include "wx/evtloop.h" +#include "wx/thread.h" +#include "wx/scopeguard.h" +#include "wx/vector.h" #include "wx/msw/private.h" +#include "wx/msw/dc.h" +#include "wx/msw/ole/oleutils.h" +#include "wx/msw/private/timer.h" #if wxUSE_TOOLTIPS #include "wx/tooltip.h" @@ -61,12 +64,17 @@ // OLE is used for drag-and-drop, clipboard, OLE Automation..., but some // compilers don't support it (missing headers, libs, ...) -#if defined(__GNUWIN32_OLD__) || defined(__SYMANTEC__) || defined(__SALFORDC__) +#if defined(__GNUWIN32_OLD__) || defined(__SYMANTEC__) #undef wxUSE_OLE #define wxUSE_OLE 0 #endif // broken compilers +#if defined(__POCKETPC__) || defined(__SMARTPHONE__) + #include + #include +#endif + #if wxUSE_OLE #include #endif @@ -74,42 +82,62 @@ #include #include -#include "wx/msw/wrapcctl.h" - -// For MB_TASKMODAL -#ifdef __WXWINCE__ -#include "wx/msw/wince/missing.h" -#endif - -#if (!defined(__MINGW32__) || wxCHECK_W32API_VERSION( 2, 0 )) && \ - !defined(__CYGWIN__) && !defined(__DIGITALMARS__) && !defined(__WXWINCE__) && \ - (!defined(_MSC_VER) || (_MSC_VER > 1100)) - #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) + +#ifndef ATTACH_PARENT_PROCESS + #define ATTACH_PARENT_PROCESS ((DWORD)-1) #endif // --------------------------------------------------------------------------- // global variables // --------------------------------------------------------------------------- -extern wxList WXDLLEXPORT wxPendingDelete; - #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) extern void wxSetKeyboardHook(bool doIt); #endif -// 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 -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"); +// because of mingw32 4.3 bug this struct can't be inside the namespace below: +// see http://article.gmane.org/gmane.comp.lib.wxwidgets.devel/110282 +struct ClassRegInfo +{ + ClassRegInfo(const wxChar *name) + : regname(name), + regnameNR(regname + wxApp::GetNoRedrawClassSuffix()) + { + } + + // the name of the registered class with and without CS_[HV]REDRAW styles + wxString regname; + wxString regnameNR; +}; + +namespace +{ + +wxVector gs_regClassesInfo; + +} // anonymous namespace // ---------------------------------------------------------------------------- // private functions @@ -144,12 +172,12 @@ void *wxGUIAppTraits::BeforeChildWaitLoop() 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 + last child's 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 + time because we don't know when the child's windows are going to be + closed, so the solution we use here is to keep one special tiny dialog enabled all the time. Then when the child terminates it will get - activated and when we close it below -- after reenabling all the other + activated and when we close it below -- after re-enabling all the other windows! -- the previously active window becomes activated again and everything is ok. */ @@ -158,27 +186,22 @@ void *wxGUIAppTraits::BeforeChildWaitLoop() // 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 + // then create an "invisible" dialog: it has minimal size, is positioned + // (hopefully) outside the screen and doesn't appear in the Alt-TAB list + // (unlike the frames, which is why we use a dialog here) + wxWindow *winActive = new wxDialog ( wxTheApp->GetTopWindow(), wxID_ANY, wxEmptyString, wxPoint(32600, 32600), - wxSize(1, 1), - wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR + wxSize(1, 1) ); winActive->Show(); return new ChildWaitLoopData(wd, winActive); } -void wxGUIAppTraits::AlwaysYield() -{ - wxYield(); -} - void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig) { wxEndBusyCursor(); @@ -187,340 +210,569 @@ void wxGUIAppTraits::AfterChildWaitLoop(void *dataOrig) delete data->wd; - // 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 + // finally delete the dummy dialog 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(); // also delete the temporary data object itself delete data; } +#if wxUSE_THREADS 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(); + wxEventLoopBase * const evtLoop = wxEventLoop::GetActive(); + if ( !evtLoop || !evtLoop->Pending() ) + { + // no events means no quit event + return true; + } + + return evtLoop->Dispatch(); +} + +DWORD wxGUIAppTraits::WaitForThread(WXHANDLE hThread, int flags) +{ + // We only ever dispatch messages from the main thread and, additionally, + // even from the main thread we shouldn't wait for the message if we don't + // have a running event loop as we would never remove them from the message + // queue then and so we would enter an infinite loop as + // MsgWaitForMultipleObjects() keeps returning WAIT_OBJECT_0 + 1. + if ( flags == wxTHREAD_WAIT_BLOCK || + !wxIsMainThread() || + !wxEventLoop::GetActive() ) + { + // Simple blocking wait. + 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 + ); } +#endif // wxUSE_THREADS -wxToolkitInfo& wxGUIAppTraits::GetToolkitInfo() +wxPortId wxGUIAppTraits::GetToolkitVersion(int *majVer, int *minVer) const { - 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"); + 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 - return info; } -// =========================================================================== -// wxApp implementation -// =========================================================================== +#if wxUSE_TIMER -int wxApp::m_nCmdShow = SW_SHOWNORMAL; +wxTimerImpl *wxGUIAppTraits::CreateTimerImpl(wxTimer *timer) +{ + return new wxMSWTimerImpl(timer); +} + +#endif // wxUSE_TIMER + +wxEventLoopBase* wxGUIAppTraits::CreateEventLoop() +{ + return new wxEventLoop; +} // --------------------------------------------------------------------------- -// wxWin macros +// Stuff for using console from the GUI applications // --------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) +#ifndef __WXWINCE__ -BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) - EVT_IDLE(wxApp::OnIdle) - EVT_END_SESSION(wxApp::OnEndSession) - EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession) -END_EVENT_TABLE() +#if wxUSE_DYNLIB_CLASS -// class to ensure that wxAppBase::CleanUp() is called if our Initialize() -// fails -class wxCallBaseCleanup +#include + +namespace { -public: - wxCallBaseCleanup(wxApp *app) : m_app(app) { } - ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); } - void Dismiss() { m_app = NULL; } +/* + Helper class to manipulate console from a GUI app. -private: - wxApp *m_app; -}; + Notice that console output is available in the GUI app only if: + - AttachConsole() returns TRUE (which means it never works under pre-XP) + - we have a valid STD_ERROR_HANDLE + - command history hasn't been changed since our startup -//// Initialize -bool wxApp::Initialize(int& argc, wxChar **argv) + To check if all these conditions are verified, you need to simple call + IsOkToUse(). It will check the first two conditions above the first time it + is called (and if this fails, the subsequent calls will return immediately) + and also recheck the last one every time it is called. + */ +class wxConsoleStderr { - if ( !wxAppBase::Initialize(argc, argv) ) - return false; +public: + // default ctor does nothing, call Init() before using this class + wxConsoleStderr() + { + m_hStderr = INVALID_HANDLE_VALUE; + m_historyLen = + m_dataLen = + m_dataLine = 0; - // ensure that base cleanup is done if we return too early - wxCallBaseCleanup callBaseCleanup(this); + m_ok = -1; + } -#ifdef __WXWINCE__ - wxString tmp = GetAppName(); - tmp += wxT("ClassName"); - wxCanvasClassName = wxStrdup( tmp.c_str() ); - tmp += wxT("NR"); - wxCanvasClassNameNR = wxStrdup( tmp.c_str() ); - HWND hWnd = FindWindow( wxCanvasClassNameNR, NULL ); - if (hWnd) + ~wxConsoleStderr() { - SetForegroundWindow( (HWND)(((DWORD)hWnd)|0x01) ); - return false; + if ( m_hStderr != INVALID_HANDLE_VALUE ) + { + if ( !::FreeConsole() ) + { + wxLogLastError(wxT("FreeConsole")); + } + } } -#endif - // 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 ) + // return true if we were successfully initialized and there had been no + // console activity which would interfere with our output since then + bool IsOkToUse() const { - // 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("wxWidgets Fatal Error"), - MB_ICONERROR | MB_OK - ); + if ( m_ok == -1 ) + { + wxConsoleStderr * const self = const_cast(this); + self->m_ok = self->DoInit(); - return false; + // no need to call IsHistoryUnchanged() as we just initialized + // m_history anyhow + return m_ok == 1; + } + + return m_ok && IsHistoryUnchanged(); } -#endif // wxUSE_UNICODE && !wxUSE_UNICODE_MSLU -#if defined(__WIN95__) && !defined(__WXMICROWIN__) - InitCommonControls(); -#endif // __WIN95__ -#if wxUSE_OLE || wxUSE_DRAG_AND_DROP + // output the provided text on the console, return true if ok + bool Write(const wxString& text); -#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 +private: + // called by Init() once only to do the real initialization + bool DoInit(); -#endif // wxUSE_OLE + // retrieve the command line history into the provided buffer and return + // its length + int GetCommandHistory(wxWxCharBuffer& buf) const; -#if wxUSE_CTL3D - if (!Ctl3dRegister(wxhInstance)) - wxLogError(wxT("Cannot register CTL3D")); + // check if the console history has changed + bool IsHistoryUnchanged() const; - Ctl3dAutoSubclass(wxhInstance); -#endif // wxUSE_CTL3D + int m_ok; // initially -1, set to true or false by Init() - RegisterWindowClasses(); + wxDynamicLibrary m_dllKernel32; -#if wxUSE_PENWINDOWS - wxRegisterPenWin(); -#endif + HANDLE m_hStderr; // console handle, if it's valid we must call + // FreeConsole() (even if m_ok != 1) - wxWinHandleHash = new wxWinHashTable(wxKEY_INTEGER, 100); + wxWxCharBuffer m_history; // command history on startup + int m_historyLen; // length command history buffer -#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) - wxSetKeyboardHook(true); -#endif + wxCharBuffer m_data; // data between empty line and cursor position + int m_dataLen; // length data buffer + int m_dataLine; // line offset - callBaseCleanup.Dismiss(); + typedef DWORD (WINAPI *GetConsoleCommandHistory_t)(LPTSTR sCommands, + DWORD nBufferLength, + LPCTSTR sExeName); + typedef DWORD (WINAPI *GetConsoleCommandHistoryLength_t)(LPCTSTR sExeName); - return true; -} + GetConsoleCommandHistory_t m_pfnGetConsoleCommandHistory; + GetConsoleCommandHistoryLength_t m_pfnGetConsoleCommandHistoryLength; -// --------------------------------------------------------------------------- -// RegisterWindowClasses -// --------------------------------------------------------------------------- + wxDECLARE_NO_COPY_CLASS(wxConsoleStderr); +}; -// 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() +bool wxConsoleStderr::DoInit() { - WNDCLASS wndclass; - wxZeroMemory(wndclass); + HANDLE hStderr = ::GetStdHandle(STD_ERROR_HANDLE); + + if ( hStderr == INVALID_HANDLE_VALUE || !hStderr ) + return false; - // 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; + if ( !m_dllKernel32.Load(wxT("kernel32.dll")) ) + return false; + + typedef BOOL (WINAPI *AttachConsole_t)(DWORD dwProcessId); + AttachConsole_t wxDL_INIT_FUNC(pfn, AttachConsole, m_dllKernel32); + + if ( !pfnAttachConsole || !pfnAttachConsole(ATTACH_PARENT_PROCESS) ) + return false; + + // console attached, set m_hStderr now to ensure that we free it in the + // dtor + m_hStderr = hStderr; + + wxDL_INIT_FUNC_AW(m_pfn, GetConsoleCommandHistory, m_dllKernel32); + if ( !m_pfnGetConsoleCommandHistory ) + return false; + + wxDL_INIT_FUNC_AW(m_pfn, GetConsoleCommandHistoryLength, m_dllKernel32); + if ( !m_pfnGetConsoleCommandHistoryLength ) + return false; + + // remember the current command history to be able to compare with it later + // in IsHistoryUnchanged() + m_historyLen = GetCommandHistory(m_history); + if ( !m_history ) + return false; - // the fields which are common to all classes - wndclass.lpfnWndProc = (WNDPROC)wxWndProc; - wndclass.hInstance = wxhInstance; - wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW); - // register the class for all normal windows - wndclass.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1); - wndclass.lpszClassName = wxCanvasClassName; - wndclass.style = styleNormal; + // now find the first blank line above the current position + CONSOLE_SCREEN_BUFFER_INFO csbi; - if ( !RegisterClass(&wndclass) ) + if ( !::GetConsoleScreenBufferInfo(m_hStderr, &csbi) ) { - wxLogLastError(wxT("RegisterClass(frame)")); + wxLogLastError(wxT("GetConsoleScreenBufferInfo")); + return false; } - // "no redraw" frame - wndclass.lpszClassName = wxCanvasClassNameNR; - wndclass.style = styleNoRedraw; + COORD pos; + pos.X = 0; + pos.Y = csbi.dwCursorPosition.Y + 1; - if ( !RegisterClass(&wndclass) ) + // we decide that a line is empty if first 4 characters are spaces + DWORD ret; + char buf[4]; + do { - wxLogLastError(wxT("RegisterClass(no redraw frame)")); + pos.Y--; + if ( !::ReadConsoleOutputCharacterA(m_hStderr, buf, WXSIZEOF(buf), + pos, &ret) ) + { + wxLogLastError(wxT("ReadConsoleOutputCharacterA")); + return false; + } + } while ( wxStrncmp(" ", buf, WXSIZEOF(buf)) != 0 ); + + // calculate line offset and length of data + m_dataLine = csbi.dwCursorPosition.Y - pos.Y; + m_dataLen = m_dataLine*csbi.dwMaximumWindowSize.X + csbi.dwCursorPosition.X; + + if ( m_dataLen > 0 ) + { + m_data.extend(m_dataLen); + if ( !::ReadConsoleOutputCharacterA(m_hStderr, m_data.data(), m_dataLen, + pos, &ret) ) + { + wxLogLastError(wxT("ReadConsoleOutputCharacterA")); + return false; + } } - // Register the MDI frame window class. - wndclass.hbrBackground = (HBRUSH)NULL; // paint MDI frame ourselves - wndclass.lpszClassName = wxMDIFrameClassName; - wndclass.style = styleNormal; + return true; +} + +int wxConsoleStderr::GetCommandHistory(wxWxCharBuffer& buf) const +{ + // these functions are internal and may only be called by cmd.exe + static const wxChar *CMD_EXE = wxT("cmd.exe"); - if ( !RegisterClass(&wndclass) ) + const int len = m_pfnGetConsoleCommandHistoryLength(CMD_EXE); + if ( len ) { - wxLogLastError(wxT("RegisterClass(MDI parent)")); + buf.extend(len); + + int len2 = m_pfnGetConsoleCommandHistory(buf.data(), len, CMD_EXE); + +#if !wxUSE_UNICODE + // there seems to be a bug in the GetConsoleCommandHistoryA(), it + // returns the length of Unicode string and not ANSI one + len2 /= 2; +#endif // !wxUSE_UNICODE + + if ( len2 != len ) + { + wxFAIL_MSG( wxT("failed getting history?") ); + } } - // "no redraw" MDI frame - wndclass.lpszClassName = wxMDIFrameClassNameNoRedraw; - wndclass.style = styleNoRedraw; + return len; +} + +bool wxConsoleStderr::IsHistoryUnchanged() const +{ + wxASSERT_MSG( m_ok == 1, wxT("shouldn't be called if not initialized") ); + + // get (possibly changed) command history + wxWxCharBuffer history; + const int historyLen = GetCommandHistory(history); - if ( !RegisterClass(&wndclass) ) + // and compare it with the original one + return historyLen == m_historyLen && history && + memcmp(m_history, history, historyLen) == 0; +} + +bool wxConsoleStderr::Write(const wxString& text) +{ + wxASSERT_MSG( m_hStderr != INVALID_HANDLE_VALUE, + wxT("should only be called if Init() returned true") ); + + // get current position + CONSOLE_SCREEN_BUFFER_INFO csbi; + if ( !::GetConsoleScreenBufferInfo(m_hStderr, &csbi) ) { - wxLogLastError(wxT("RegisterClass(no redraw MDI parent frame)")); + wxLogLastError(wxT("GetConsoleScreenBufferInfo")); + return false; } - // Register the MDI child frame window class. - wndclass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1); - wndclass.lpszClassName = wxMDIChildFrameClassName; - wndclass.style = styleNormal; + // and calculate new position (where is empty line) + csbi.dwCursorPosition.X = 0; + csbi.dwCursorPosition.Y -= m_dataLine; - if ( !RegisterClass(&wndclass) ) + if ( !::SetConsoleCursorPosition(m_hStderr, csbi.dwCursorPosition) ) { - wxLogLastError(wxT("RegisterClass(MDI child)")); + wxLogLastError(wxT("SetConsoleCursorPosition")); + return false; } - // "no redraw" MDI child frame - wndclass.lpszClassName = wxMDIChildFrameClassNameNoRedraw; - wndclass.style = styleNoRedraw; + DWORD ret; + if ( !::FillConsoleOutputCharacter(m_hStderr, wxT(' '), m_dataLen, + csbi.dwCursorPosition, &ret) ) + { + wxLogLastError(wxT("FillConsoleOutputCharacter")); + return false; + } - if ( !RegisterClass(&wndclass) ) + if ( !::WriteConsole(m_hStderr, text.t_str(), text.length(), &ret, NULL) ) { - wxLogLastError(wxT("RegisterClass(no redraw MDI child)")); + wxLogLastError(wxT("WriteConsole")); + return false; } + WriteConsoleA(m_hStderr, m_data, m_dataLen, &ret, 0); + return true; } +wxConsoleStderr s_consoleStderr; + +} // anonymous namespace + +bool wxGUIAppTraits::CanUseStderr() +{ + return s_consoleStderr.IsOkToUse(); +} + +bool wxGUIAppTraits::WriteToStderr(const wxString& text) +{ + return s_consoleStderr.IsOkToUse() && s_consoleStderr.Write(text); +} + +#else // !wxUSE_DYNLIB_CLASS + +bool wxGUIAppTraits::CanUseStderr() +{ + return false; +} + +bool wxGUIAppTraits::WriteToStderr(const wxString& WXUNUSED(text)) +{ + return false; +} + +#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS + +#endif // !__WXWINCE__ + +// =========================================================================== +// wxApp implementation +// =========================================================================== + +int wxApp::m_nCmdShow = SW_SHOWNORMAL; + // --------------------------------------------------------------------------- -// UnregisterWindowClasses +// wxWin macros // --------------------------------------------------------------------------- -bool wxApp::UnregisterWindowClasses() +IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler) + +BEGIN_EVENT_TABLE(wxApp, wxEvtHandler) + EVT_IDLE(wxApp::OnIdle) + EVT_END_SESSION(wxApp::OnEndSession) + EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession) +END_EVENT_TABLE() + +// class to ensure that wxAppBase::CleanUp() is called if our Initialize() +// fails +class wxCallBaseCleanup { - bool retval = true; +public: + wxCallBaseCleanup(wxApp *app) : m_app(app) { } + ~wxCallBaseCleanup() { if ( m_app ) m_app->wxAppBase::CleanUp(); } -#ifndef __WXMICROWIN__ - // MDI frame window class. - if ( !::UnregisterClass(wxMDIFrameClassName, wxhInstance) ) - { - wxLogLastError(wxT("UnregisterClass(MDI parent)")); + void Dismiss() { m_app = NULL; } - retval = false; - } +private: + wxApp *m_app; +}; - // "no redraw" MDI frame - if ( !::UnregisterClass(wxMDIFrameClassNameNoRedraw, wxhInstance) ) - { - wxLogLastError(wxT("UnregisterClass(no redraw MDI parent frame)")); +//// Initialize +bool wxApp::Initialize(int& argc, wxChar **argv) +{ + if ( !wxAppBase::Initialize(argc, argv) ) + return false; - retval = false; - } + // ensure that base cleanup is done if we return too early + wxCallBaseCleanup callBaseCleanup(this); - // MDI child frame window class. - if ( !::UnregisterClass(wxMDIChildFrameClassName, wxhInstance) ) - { - wxLogLastError(wxT("UnregisterClass(MDI child)")); +#if !defined(__WXMICROWIN__) + InitCommonControls(); +#endif // !defined(__WXMICROWIN__) - retval = false; - } +#if defined(__SMARTPHONE__) || defined(__POCKETPC__) + SHInitExtraControls(); +#endif + +#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 + + wxOleInitialize(); + +#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) + wxSetKeyboardHook(true); +#endif + + callBaseCleanup.Dismiss(); + + return true; +} - // "no redraw" MDI child frame - if ( !::UnregisterClass(wxMDIChildFrameClassNameNoRedraw, wxhInstance) ) +// --------------------------------------------------------------------------- +// Win32 window class registration +// --------------------------------------------------------------------------- + +/* static */ +const wxChar *wxApp::GetRegisteredClassName(const wxChar *name, + int bgBrushCol, + int extraStyles) +{ + const size_t count = gs_regClassesInfo.size(); + for ( size_t n = 0; n < count; n++ ) { - wxLogLastError(wxT("UnregisterClass(no redraw MDI child)")); + if ( gs_regClassesInfo[n].regname == name ) + return gs_regClassesInfo[n].regname.c_str(); + } + + // we need to register this class + WNDCLASS wndclass; + wxZeroMemory(wndclass); + + wndclass.lpfnWndProc = (WNDPROC)wxWndProc; + wndclass.hInstance = wxGetInstance(); + wndclass.hCursor = ::LoadCursor(NULL, IDC_ARROW); + wndclass.hbrBackground = (HBRUSH)wxUIntToPtr(bgBrushCol + 1); + wndclass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | extraStyles; - retval = false; + + ClassRegInfo regClass(name); + wndclass.lpszClassName = regClass.regname.t_str(); + if ( !::RegisterClass(&wndclass) ) + { + wxLogLastError(wxString::Format(wxT("RegisterClass(%s)"), + regClass.regname)); + return NULL; } - // canvas class name - if ( !::UnregisterClass(wxCanvasClassName, wxhInstance) ) + wndclass.style &= ~(CS_HREDRAW | CS_VREDRAW); + wndclass.lpszClassName = regClass.regnameNR.t_str(); + if ( !::RegisterClass(&wndclass) ) { - wxLogLastError(wxT("UnregisterClass(canvas)")); + wxLogLastError(wxString::Format(wxT("RegisterClass(%s)"), + regClass.regname)); + ::UnregisterClass(regClass.regname.c_str(), wxGetInstance()); + return NULL; + } + + gs_regClassesInfo.push_back(regClass); + + // take care to return the pointer which will remain valid after the + // function returns (it could be invalidated later if new elements are + // added to the vector and it's reallocated but this shouldn't matter as + // this pointer should be used right now, not stored) + return gs_regClassesInfo.back().regname.t_str(); +} - retval = false; +bool wxApp::IsRegisteredClassName(const wxString& name) +{ + const size_t count = gs_regClassesInfo.size(); + for ( size_t n = 0; n < count; n++ ) + { + if ( gs_regClassesInfo[n].regname == name || + gs_regClassesInfo[n].regnameNR == name ) + return true; } - if ( !::UnregisterClass(wxCanvasClassNameNR, wxhInstance) ) + return false; +} + +void wxApp::UnregisterWindowClasses() +{ + const size_t count = gs_regClassesInfo.size(); + for ( size_t n = 0; n < count; n++ ) { - wxLogLastError(wxT("UnregisterClass(no redraw canvas)")); + const ClassRegInfo& regClass = gs_regClassesInfo[n]; + if ( !::UnregisterClass(regClass.regname.c_str(), wxGetInstance()) ) + { + wxLogLastError(wxString::Format(wxT("UnregisterClass(%s)"), + regClass.regname)); + } - retval = false; + if ( !::UnregisterClass(regClass.regnameNR.c_str(), wxGetInstance()) ) + { + wxLogLastError(wxString::Format(wxT("UnregisterClass(%s)"), + regClass.regnameNR)); + } } -#endif // __WXMICROWIN__ - return retval; + gs_regClassesInfo.clear(); } void wxApp::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 + // all objects pending for deletion must be deleted first, otherwise + // UnregisterWindowClasses() call wouldn't succeed (because windows + // using the classes being unregistered still exist), so call the base + // class method first and only then do our clean up wxAppBase::CleanUp(); #if !defined(__WXMICROWIN__) && !defined(__WXWINCE__) wxSetKeyboardHook(false); #endif -#if wxUSE_PENWINDOWS - wxCleanUpPenWin(); -#endif - -#if wxUSE_OLE -#ifdef __WXWINCE__ - ::CoUninitialize(); -#else - ::OleUninitialize(); -#endif -#endif + wxOleUninitialize(); // for an EXE the classes are unregistered when it terminates but DLL may // be loaded several times (load/unload/load) into the same process in // which case the registration will fail after the first time if we don't // unregister the classes now UnregisterWindowClasses(); - -#if wxUSE_CTL3D - Ctl3dUnregister(wxhInstance); -#endif - - delete wxWinHandleHash; - wxWinHandleHash = NULL; - -#ifdef __WXWINCE__ - free( wxCanvasClassName ); - free( wxCanvasClassNameNR ); -#endif } // ---------------------------------------------------------------------------- @@ -534,33 +786,20 @@ wxApp::wxApp() wxApp::~wxApp() { - // our cmd line arguments are allocated inside wxEntry(HINSTANCE), they - // don't come from main(), so we have to free them - - while ( argc ) - { - // m_argv elements were allocated by wxStrdup() - free(argv[--argc]); - } - - // but m_argv itself -- using new[] - delete [] argv; } // ---------------------------------------------------------------------------- // wxApp idle handling // ---------------------------------------------------------------------------- -void wxApp::OnIdle(wxIdleEvent& event) +void wxApp::OnIdle(wxIdleEvent& WXUNUSED(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(); + wxMSWDCImpl::ClearCache(); #endif // wxUSE_DC_CACHEING } @@ -570,15 +809,34 @@ void wxApp::WakeUpIdle() // 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(); + wxWindow * const topWindow = wxTheApp->GetTopWindow(); if ( topWindow ) { - if ( !::PostMessage(GetHwndOf(topWindow), WM_NULL, 0, 0) ) + HWND hwndTop = GetHwndOf(topWindow); + + // Do not post WM_NULL if there's already a pending WM_NULL to avoid + // overflowing the message queue. + // + // Notice that due to a limitation of PeekMessage() API (which handles + // 0,0 range specially), we have to check the range from 0-1 instead. + // This still makes it possible to overflow the queue with WM_NULLs by + // interspersing the calles to WakeUpIdle() with windows creation but + // it should be rather hard to do it accidentally. + MSG msg; + if ( !::PeekMessage(&msg, hwndTop, 0, 1, PM_NOREMOVE) || + ::PeekMessage(&msg, hwndTop, 1, 1, PM_NOREMOVE) ) { - // should never happen - wxLogLastError(wxT("PostMessage(WM_NULL)")); + if ( !::PostMessage(hwndTop, WM_NULL, 0, 0) ) + { + // should never happen + wxLogLastError(wxT("PostMessage(WM_NULL)")); + } } } +#if wxUSE_THREADS + else + wxWakeUpMainThread(); +#endif // wxUSE_THREADS } // ---------------------------------------------------------------------------- @@ -587,8 +845,24 @@ void wxApp::WakeUpIdle() void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event)) { - if (GetTopWindow()) - GetTopWindow()->Close(true); + // Windows will terminate the process soon after we return from + // WM_ENDSESSION handler or when we delete our last window, so make sure we + // at least execute our cleanup code before + + // prevent the window from being destroyed when the corresponding wxTLW is + // destroyed: this will result in a leak of a HWND, of course, but who + // cares when the process is being killed anyhow + if ( !wxTopLevelWindows.empty() ) + wxTopLevelWindows[0]->SetHWND(0); + + const int rc = OnExit(); + + wxEntryCleanup(); + + // calling exit() instead of ExitProcess() or not doing anything at all and + // being killed by Windows has the advantage of executing the dtors of + // global objects + exit(rc); } // Default behaviour: close the application with prompts. The @@ -603,15 +877,45 @@ void wxApp::OnQueryEndSession(wxCloseEvent& event) } // ---------------------------------------------------------------------------- -// miscellaneous +// system DLL versions // ---------------------------------------------------------------------------- +// these functions have trivial inline implementations for CE +#ifndef __WXWINCE__ + +#if wxUSE_DYNLIB_CLASS + +namespace +{ + +// 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; + + DLLVERSIONINFO dvi; + dvi.cbSize = sizeof(dvi); + + HRESULT hr = (*pfnDllGetVersion)(&dvi); + if ( FAILED(hr) ) + { + wxLogApiError(wxT("DllGetVersion"), hr); + + return 0; + } + + return 100*dvi.dwMajorVersion + dvi.dwMinorVersion; +} + +} // anonymous namespace + /* static */ int wxApp::GetComCtl32Version() { -#if defined(__WXMICROWIN__) || defined(__WXWINCE__) - return 0; -#else // cache the result // // NB: this is MT-ok as in the worst case we'd compute s_verComCtl32 twice, @@ -620,128 +924,104 @@ int wxApp::GetComCtl32Version() if ( s_verComCtl32 == -1 ) { - // initally assume no comctl32.dll at all - s_verComCtl32 = 0; - // we're prepared to handle the errors wxLogNull noLog; - // do we have it? - wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM); + // we don't want to load comctl32.dll, it should be already loaded but, + // depending on the OS version and the presence of the manifest, it can + // be either v5 or v6 and instead of trying to guess it just get the + // handle of the already loaded version + wxLoadedDLL dllComCtl32(wxT("comctl32.dll")); + if ( !dllComCtl32.IsLoaded() ) + { + s_verComCtl32 = 0; + return 0; + } + + // try DllGetVersion() for recent DLLs + s_verComCtl32 = CallDllGetVersion(dllComCtl32); - // if so, then we can check for the version - if ( dllComCtl32.IsLoaded() ) + // if DllGetVersion() is unavailable either during compile or + // run-time, try to guess the version otherwise + if ( !s_verComCtl32 ) { -#ifdef DLLVER_PLATFORM_WINDOWS - // try to use DllGetVersion() if available in _headers_ - wxDYNLIB_FUNCTION( DLLGETVERSIONPROC, DllGetVersion, dllComCtl32 ); - if ( pfnDllGetVersion ) + // InitCommonControlsEx is unique to 4.70 and later + void *pfn = dllComCtl32.GetSymbol(wxT("InitCommonControlsEx")); + if ( !pfn ) { - DLLVERSIONINFO dvi; - dvi.cbSize = sizeof(dvi); - - HRESULT hr = (*pfnDllGetVersion)(&dvi); - if ( FAILED(hr) ) - { - wxLogApiError(_T("DllGetVersion"), hr); - } - else - { - // this is incompatible with _WIN32_IE values, but - // compatible with the other values returned by - // GetComCtl32Version() - s_verComCtl32 = 100*dvi.dwMajorVersion + - dvi.dwMinorVersion; - } + // not found, must be 4.00 + s_verComCtl32 = 400; } -#endif - - // if DllGetVersion() is unavailable either during compile or - // run-time, try to guess the version otherwise - if ( !s_verComCtl32 ) + else // 4.70+ { - // InitCommonControlsEx is unique to 4.70 and later - void *pfn = dllComCtl32.GetSymbol(_T("InitCommonControlsEx")); + // many symbols appeared in comctl32 4.71, could use any of + // them except may be DllInstall() + pfn = dllComCtl32.GetSymbol(wxT("InitializeFlatSB")); if ( !pfn ) { - // not found, must be 4.00 - s_verComCtl32 = 400; + // not found, must be 4.70 + s_verComCtl32 = 470; } - else // 4.70+ + else { - // many symbols appeared in comctl32 4.71, could use any of - // them except may be DllInstall() - pfn = dllComCtl32.GetSymbol(_T("InitializeFlatSB")); - if ( !pfn ) - { - // not found, must be 4.70 - s_verComCtl32 = 470; - } - else - { - // found, must be 4.71 or later - s_verComCtl32 = 471; - } + // found, must be 4.71 or later + s_verComCtl32 = 471; } } } } return s_verComCtl32; -#endif // Microwin/!Microwin } -// Yield to incoming messages - -bool wxApp::Yield(bool onlyIfNeeded) +/* static */ +int wxApp::GetShell32Version() { - // MT-FIXME - static bool s_inYield = false; + static int s_verShell32 = -1; + if ( s_verShell32 == -1 ) + { + // we're prepared to handle the errors + wxLogNull noLog; -#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 + wxDynamicLibrary dllShell32(wxT("shell32.dll"), wxDL_VERBATIM); + if ( dllShell32.IsLoaded() ) + { + s_verShell32 = CallDllGetVersion(dllShell32); - if ( s_inYield ) - { - if ( !onlyIfNeeded ) + if ( !s_verShell32 ) + { + // there doesn't seem to be any way to distinguish between 4.00 + // and 4.70 (starting from 4.71 we have DllGetVersion()) so + // just assume it is 4.0 + s_verShell32 = 400; + } + } + else // failed load the DLL? { - wxFAIL_MSG( wxT("wxYield called recursively" ) ); + s_verShell32 = 0; } - - return false; } - s_inYield = true; - - // we don't want to process WM_QUIT from here - it should be processed in - // the main event loop in order to stop it - MSG msg; - while ( PeekMessage(&msg, (HWND)0, 0, 0, PM_NOREMOVE) && - msg.message != WM_QUIT ) - { -#if wxUSE_THREADS - wxMutexGuiLeaveOrEnter(); -#endif // wxUSE_THREADS + return s_verShell32; +} - if ( !wxTheApp->Dispatch() ) - break; - } +#else // !wxUSE_DYNLIB_CLASS - // if there are pending events, we must process them. - ProcessPendingEvents(); +/* static */ +int wxApp::GetComCtl32Version() +{ + return 0; +} -#if wxUSE_LOG - // let the logs be flashed again - wxLog::Resume(); -#endif // wxUSE_LOG +/* static */ +int wxApp::GetShell32Version() +{ + return 0; +} - s_inYield = false; +#endif // wxUSE_DYNLIB_CLASS/!wxUSE_DYNLIB_CLASS - return true; -} +#endif // !__WXWINCE__ #if wxUSE_EXCEPTIONS @@ -757,12 +1037,12 @@ bool wxApp::OnExceptionInMainLoop() ::MessageBox ( NULL, - _T("An unhandled exception occurred. Press \"Abort\" to \ + wxT("An unhandled exception occurred. Press \"Abort\" to \ terminate the program,\r\n\ \"Retry\" to exit the program normally and \"Ignore\" to try to continue."), - _T("Unhandled exception"), + wxT("Unhandled exception"), MB_ABORTRETRYIGNORE | - MB_ICONERROR| + MB_ICONERROR| MB_TASKMODAL ) ) @@ -771,7 +1051,7 @@ terminate the program,\r\n\ throw; default: - wxFAIL_MSG( _T("unexpected MessageBox() return code") ); + wxFAIL_MSG( wxT("unexpected MessageBox() return code") ); // fall through case IDRETRY: @@ -783,33 +1063,3 @@ terminate the program,\r\n\ } #endif // wxUSE_EXCEPTIONS - -// ---------------------------------------------------------------------------- -// deprecated event loop functions -// ---------------------------------------------------------------------------- - -#if WXWIN_COMPATIBILITY_2_4 - -#include "wx/evtloop.h" - -void wxApp::DoMessage(WXMSG *pMsg) -{ - wxEventLoop *evtLoop = wxEventLoop::GetActive(); - if ( evtLoop ) - evtLoop->ProcessMessage(pMsg); -} - -bool wxApp::DoMessage() -{ - wxEventLoop *evtLoop = wxEventLoop::GetActive(); - return evtLoop ? evtLoop->Dispatch() : false; -} - -bool wxApp::ProcessMessage(WXMSG* pMsg) -{ - wxEventLoop *evtLoop = wxEventLoop::GetActive(); - return evtLoop && evtLoop->PreProcessMessage(pMsg); -} - -#endif // WXWIN_COMPATIBILITY_2_4 -