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Diffstat (limited to 'src/player/TouchStatus.cpp')
-rw-r--r-- | src/player/TouchStatus.cpp | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/player/TouchStatus.cpp b/src/player/TouchStatus.cpp new file mode 100644 index 0000000..ff08bc9 --- /dev/null +++ b/src/player/TouchStatus.cpp @@ -0,0 +1,109 @@ +// +// 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; +} + +} + |