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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#include "TouchStatus.h"
#include "TouchEvent.h"
#include "BoostPython.h"
#include "Player.h"
#include "../base/Exception.h"
#include "../base/StringHelper.h"
#include <iostream>
using namespace std;
namespace avg {
TouchStatus::TouchStatus(TouchEventPtr pEvent)
: m_bFirstFrame(true),
m_CursorID(pEvent->getCursorID())
{
m_pNewEvents.push_back(pEvent);
m_pLastEvent = pEvent;
}
TouchStatus::~TouchStatus()
{
}
void TouchStatus::pushEvent(TouchEventPtr pEvent, bool bCheckMotion)
{
AVG_ASSERT(pEvent);
pEvent->setCursorID(m_CursorID);
if (m_bFirstFrame) {
// Ignore unless cursorup.
if (pEvent->getType() == Event::CURSOR_UP) {
// Down and up in the first frame. To avoid inconsistencies, both
// messages must be delivered. This is the only time that m_pNewEvents
// has more than one entry.
m_pNewEvents.push_back(pEvent);
}
} else {
if (bCheckMotion && pEvent->getType() == Event::CURSOR_MOTION &&
getLastEvent()->getPos() == pEvent->getPos())
{
// Ignore motion events without motion.
return;
} else {
if (m_pNewEvents.empty()) {
// No pending events: schedule for delivery.
m_pNewEvents.push_back(pEvent);
} else {
// More than one event per poll: Deliver only the last one.
m_pNewEvents[0] = pEvent;
}
}
}
}
TouchEventPtr TouchStatus::pollEvent()
{
if (m_pNewEvents.empty()) {
return TouchEventPtr();
} else {
TouchEventPtr pEvent = m_pNewEvents[0];
m_pNewEvents.erase(m_pNewEvents.begin());
m_bFirstFrame = false;
m_pLastEvent = pEvent;
return pEvent;
}
}
TouchEventPtr TouchStatus::getLastEvent()
{
if (m_pNewEvents.empty()) {
AVG_ASSERT(m_pLastEvent);
return m_pLastEvent;
} else {
return m_pNewEvents.back();
}
}
int TouchStatus::getID() const
{
return m_CursorID;
}
}
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