c2ca375c56
1. Changed wxTimer to use wxTimerImpl 2. Added Unix-specific generic timer implementation 3. Added wxAppTraits::CreateTimerImpl() git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45544 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
145 lines
4.0 KiB
C++
145 lines
4.0 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/msw/timer.cpp
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// Purpose: wxTimer implementation
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// Author: Julian Smart
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// Modified by: Vadim Zeitlin (use hash map instead of list, global rewrite)
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// Created: 04/01/98
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_TIMER
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#include "wx/msw/private/timer.h"
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#ifndef WX_PRECOMP
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#include "wx/list.h"
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#include "wx/event.h"
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#include "wx/app.h"
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#include "wx/intl.h"
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#include "wx/log.h"
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#include "wx/hashmap.h"
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#endif
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#include "wx/msw/private.h"
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// ----------------------------------------------------------------------------
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// private globals
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// ----------------------------------------------------------------------------
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// define a hash containing all the timers: it is indexed by timer id and
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// contains the corresponding timer
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WX_DECLARE_HASH_MAP(unsigned long, wxMSWTimerImpl *, wxIntegerHash, wxIntegerEqual,
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wxTimerMap);
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// instead of using a global here, wrap it in a static function as otherwise it
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// could have been used before being initialized if a timer object were created
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// globally
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static wxTimerMap& TimerMap()
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{
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static wxTimerMap s_timerMap;
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return s_timerMap;
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}
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// ----------------------------------------------------------------------------
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// private functions
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// ----------------------------------------------------------------------------
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// timer callback used for all timers
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void WINAPI wxTimerProc(HWND hwnd, UINT msg, UINT_PTR idTimer, DWORD dwTime);
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// wxMSWTimerImpl class
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// ----------------------------------------------------------------------------
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bool wxMSWTimerImpl::Start(int milliseconds, bool oneShot)
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{
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if ( !wxTimerImpl::Start(milliseconds, oneShot) )
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return false;
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m_id = ::SetTimer
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(
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NULL, // don't use window
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1, // id ignored with NULL hwnd anyhow
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(UINT)m_milli, // delay
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wxTimerProc // timer proc to call
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);
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if ( !m_id )
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{
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wxLogSysError(_("Couldn't create a timer"));
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return false;
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}
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// check that SetTimer() didn't reuse an existing id: according to the MSDN
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// this can happen and this would be catastrophic to us as we rely on ids
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// uniquely identifying the timers because we use them as keys in the hash
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if ( TimerMap().find(m_id) != TimerMap().end() )
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{
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wxLogError(_("Timer creation failed."));
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::KillTimer(NULL, m_id);
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m_id = 0;
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return false;
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}
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TimerMap()[m_id] = this;
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return true;
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}
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void wxMSWTimerImpl::Stop()
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{
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wxASSERT_MSG( m_id, _T("should be running") );
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::KillTimer(NULL, m_id);
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TimerMap().erase(m_id);
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m_id = 0;
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}
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// ----------------------------------------------------------------------------
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// private functions
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// ----------------------------------------------------------------------------
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void wxProcessTimer(wxMSWTimerImpl& timer)
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{
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wxASSERT_MSG( timer.IsRunning(), _T("bogus timer id") );
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if ( timer.IsOneShot() )
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timer.Stop();
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timer.Notify();
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}
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void WINAPI
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wxTimerProc(HWND WXUNUSED(hwnd),
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UINT WXUNUSED(msg),
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UINT_PTR idTimer,
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DWORD WXUNUSED(dwTime))
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{
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wxTimerMap::iterator node = TimerMap().find((unsigned long)idTimer);
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wxCHECK_RET( node != TimerMap().end(), wxT("bogus timer id in wxTimerProc") );
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wxProcessTimer(*(node->second));
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}
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#endif // wxUSE_TIMER
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