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/**
* $Id: CControlRefresher.cpp 15444 2008-07-05 17:05:05Z lukep $
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
#include "CControlRefresher.h"
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
CControlRefresher::CControlRefresher(COleControl* control, DWORD interval)
{
ASSERT(control);
m_control = control;
m_hThread = 0;
m_dwThreadId = 0;
m_interval = interval;
m_exit = false;
m_ack = false;
}
CControlRefresher::~CControlRefresher(void)
{
Stop();
}
void CControlRefresher::Start(void)
{
if (!m_hThread)
{
m_exit = false;
// Create the thread suspended in case we want to set variables
m_hThread = ::CreateThread(0, 0, ThreadFunction, this, CREATE_SUSPENDED, &m_dwThreadId);
// Anything higher will interfere with IE responsiveness.
::SetThreadPriority(m_hThread, THREAD_PRIORITY_NORMAL);
m_lastTime = ::GetTickCount();
// Resume the thread, allowing it to run
::ResumeThread(m_hThread);
}
}
void CControlRefresher::Stop(void)
{
if (m_hThread)
{
// Let the thread know to nicely commit suicide.
m_ack = false;
m_exit = true;
// Boost the threads priority so it can finish whatever it has to do before it dies.
//::SetThreadPriority(m_hThread, THREAD_PRIORITY_TIME_CRITICAL);
// Wait until the thread has in fact died.
while (!m_ack) Sleep(10);
::CloseHandle(m_hThread);
m_hThread = 0;
}
}
bool CControlRefresher::IsRunning(void) const
{
return m_hThread != 0;
}
void CControlRefresher::SetInterval(DWORD interval)
{
m_interval = interval;
}
DWORD CControlRefresher::GetInterval(void) const
{
return m_interval;
}
DWORD CControlRefresher::ThreadFunction(LPVOID pParam)
{
CControlRefresher* refresher = (CControlRefresher*) pParam;
ASSERT(refresher);
while (!refresher->m_exit) {
if (refresher->m_control->GetHwnd()) {
refresher->m_control->RedrawWindow();
}
/*
if (!refresher->m_exit) {
::Sleep(refresher->m_interval);
}
}
else {
::Sleep(100);
}
*/
if (!refresher->m_exit) {
::Sleep(refresher->m_interval);
}
}
refresher->m_ack = true;
return 0;
}
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