X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2bda0e173844e8e0f8acf4e8ad8b5c26e5c6fe5d..1fd850ab550a30bc600d5a10c5aed5386bf3624b:/src/msw/timer.cpp diff --git a/src/msw/timer.cpp b/src/msw/timer.cpp index 0896d3648d..21f40cfb03 100644 --- a/src/msw/timer.cpp +++ b/src/msw/timer.cpp @@ -1,115 +1,240 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: timer.cpp +// Name: src/msw/timer.cpp // Purpose: wxTimer implementation // Author: Julian Smart -// Modified by: +// Modified by: Vadim Zeitlin (use hash map instead of list, global rewrite) // 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 "timer.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif +#if wxUSE_TIMER + +#include "wx/msw/private/timer.h" + #ifndef WX_PRECOMP -#include "wx/setup.h" -#include "wx/list.h" -#include "wx/app.h" + #include "wx/list.h" + #include "wx/event.h" + #include "wx/app.h" + #include "wx/intl.h" + #include "wx/log.h" + #include "wx/hashmap.h" + #include "wx/module.h" #endif -#include "wx/timer.h" #include "wx/msw/private.h" +#include "wx/msw/private/hiddenwin.h" -#include -#include +// ---------------------------------------------------------------------------- +// private globals +// ---------------------------------------------------------------------------- -#if !defined(__SC__) && !defined(__GNUWIN32__) -#include -#endif -#ifdef __WIN32__ -#define _EXPORT /**/ -#else -#define _EXPORT _export -#endif +// define a hash containing all the timers: it is indexed by timer id and +// contains the corresponding timer +WX_DECLARE_HASH_MAP(WPARAM, wxMSWTimerImpl *, wxIntegerHash, wxIntegerEqual, + wxTimerMap); -#include +// instead of using a global here, wrap it in a static function as otherwise it +// could have been used before being initialized if a timer object were created +// globally +static wxTimerMap& TimerMap() +{ + static wxTimerMap s_timerMap; -wxList wxTimerList(wxKEY_INTEGER); -UINT WINAPI _EXPORT wxTimerProc(HWND hwnd, WORD, int idTimer, DWORD); + return s_timerMap; +} -#if !USE_SHARED_LIBRARY -IMPLEMENT_ABSTRACT_CLASS(wxTimer, wxObject) -#endif +// This gets a unique, non-zero timer ID and creates an entry in the TimerMap +UINT_PTR GetNewTimerId(wxMSWTimerImpl *t) +{ + static UINT_PTR lastTimerId = 0; + + while (lastTimerId == 0 || + TimerMap().find(lastTimerId) != TimerMap().end()) + { + lastTimerId = lastTimerId + 1; + } + + TimerMap()[lastTimerId] = t; + + return lastTimerId; +} + + + +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +LRESULT APIENTRY _EXPORT wxTimerWndProc(HWND hWnd, UINT message, + WPARAM wParam, LPARAM lParam); + +// ---------------------------------------------------------------------------- +// wxTimerHiddenWindowModule: used to manage the hidden window used for +// catching timer messages (we need a module to ensure that the window is +// always deleted) +// ---------------------------------------------------------------------------- + +class wxTimerHiddenWindowModule : public wxModule +{ +public: + // module init/finalize + virtual bool OnInit(); + virtual void OnExit(); + + // get the hidden window (creates on demand) + static HWND GetHWND(); + +private: + // the HWND of the hidden window + static HWND ms_hwnd; -wxTimer::wxTimer(void) + // the class used to create it + static const wxChar *ms_className; + + DECLARE_DYNAMIC_CLASS(wxTimerHiddenWindowModule) +}; + +IMPLEMENT_DYNAMIC_CLASS(wxTimerHiddenWindowModule, wxModule) + +// ============================================================================ +// implementation +// ============================================================================ + + +// ---------------------------------------------------------------------------- +// wxMSWTimerImpl class +// ---------------------------------------------------------------------------- + +bool wxMSWTimerImpl::Start(int milliseconds, bool oneShot) { - milli = 0 ; - lastMilli = -1 ; - id = 0; + if ( !wxTimerImpl::Start(milliseconds, oneShot) ) + return false; + + m_id = GetNewTimerId(this); + // SetTimer() normally returns just idTimer but this might change in the + // future so use its return value to be safe + UINT_PTR ret = ::SetTimer + ( + wxTimerHiddenWindowModule::GetHWND(), // window for WM_TIMER + m_id, // timer ID to create + (UINT)m_milli, // delay + NULL // timer proc (unused) + ); + + if ( ret == 0 ) + { + wxLogSysError(_("Couldn't create a timer")); + + return false; + } + + return true; } -wxTimer::~wxTimer(void) +void wxMSWTimerImpl::Stop() { - Stop(); + ::KillTimer(wxTimerHiddenWindowModule::GetHWND(), m_id); + TimerMap().erase(m_id); + m_id = 0; +} + +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +void wxProcessTimer(wxMSWTimerImpl& timer) +{ + wxASSERT_MSG( timer.IsRunning(), wxT("bogus timer id") ); + + if ( timer.IsOneShot() ) + timer.Stop(); - wxTimerList.DeleteObject(this); + timer.Notify(); } -bool wxTimer::Start(int milliseconds,bool mode) + +LRESULT APIENTRY _EXPORT wxTimerWndProc(HWND hWnd, UINT message, + WPARAM wParam, LPARAM lParam) { - oneShot = mode ; - if (milliseconds < 0) - milliseconds = lastMilli; - - if (milliseconds <= 0) - return FALSE; - - lastMilli = milli = milliseconds; - - wxTimerList.DeleteObject(this); - TIMERPROC wxTimerProcInst = (TIMERPROC) MakeProcInstance((FARPROC)wxTimerProc, - wxGetInstance()); - - id = SetTimer(NULL, (UINT)(id ? id : 1), (UINT)milliseconds, wxTimerProcInst); - if (id > 0) - { - wxTimerList.Append(id, this); - return TRUE; - } - else return FALSE; + if ( message == WM_TIMER ) + { + wxTimerMap::iterator node = TimerMap().find(wParam); + + if ( node != TimerMap().end() ) + { + wxProcessTimer(*(node->second)); + + return 0; + } + //else: Unknown timer, probably one of our timers that had fired just + // before being removed from the timers map by Stop(). + } + + return ::DefWindowProc(hWnd, message, wParam, lParam); +} + +// ---------------------------------------------------------------------------- +// wxTimerHiddenWindowModule functions +// ---------------------------------------------------------------------------- + + +HWND wxTimerHiddenWindowModule::ms_hwnd = NULL; + +const wxChar *wxTimerHiddenWindowModule::ms_className = NULL; + +bool wxTimerHiddenWindowModule::OnInit() +{ + // do not initialize ms_hwnd to ms_className to NULL here: it may happen + // that our GetHWND() is called before the modules are initialized if a + // timer is created from wxApp-derived class ctor and in this case we + // shouldn't overwrite it + + return true; } -void wxTimer::Stop(void) +void wxTimerHiddenWindowModule::OnExit() { - if (id) { - KillTimer(NULL, (UINT)id); - wxTimerList.DeleteObject(this); /* @@@@ */ - } - id = 0 ; - milli = 0 ; + if ( ms_hwnd ) + { + if ( !::DestroyWindow(ms_hwnd) ) + { + wxLogLastError(wxT("DestroyWindow(wxTimerHiddenWindow)")); + } + + ms_hwnd = NULL; + } + + if ( ms_className ) + { + if ( !::UnregisterClass(ms_className, wxGetInstance()) ) + { + wxLogLastError(wxT("UnregisterClass(\"wxTimerHiddenWindow\")")); + } + + ms_className = NULL; + } } -UINT WINAPI _EXPORT wxTimerProc(HWND WXUNUSED(hwnd), WORD, int idTimer, DWORD) +/* static */ +HWND wxTimerHiddenWindowModule::GetHWND() { - wxNode *node = wxTimerList.Find((long)idTimer); - if (node) - { - wxTimer *timer = (wxTimer *)node->Data(); - if (timer->id==0) - return(0) ; // Avoid to process spurious timer events - if (timer->oneShot) - timer->Stop() ; - timer->Notify(); - } - return 0; + static const wxChar *HIDDEN_WINDOW_CLASS = wxT("wxTimerHiddenWindow"); + if ( !ms_hwnd ) + { + ms_hwnd = wxCreateHiddenWindow(&ms_className, HIDDEN_WINDOW_CLASS, + wxTimerWndProc); + } + + return ms_hwnd; } +#endif // wxUSE_TIMER