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AndroidTouch.cpp
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AndroidTouch.cpp
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/*
* Copyright (C) 2012-2013 Team XBMC
* http://xbmc.org
*
* 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, 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 XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "AndroidTouch.h"
#include "android/activity/XBMCApp.h"
#include "input/touch/generic/GenericTouchActionHandler.h"
#include "input/touch/generic/GenericTouchInputHandler.h"
CAndroidTouch::CAndroidTouch() : m_dpi(160)
{
CGenericTouchInputHandler::Get().RegisterHandler(&CGenericTouchActionHandler::Get());
}
CAndroidTouch::~CAndroidTouch()
{
CGenericTouchInputHandler::Get().UnregisterHandler();
}
bool CAndroidTouch::onTouchEvent(AInputEvent* event)
{
if (event == NULL)
return false;
size_t numPointers = AMotionEvent_getPointerCount(event);
if (numPointers <= 0)
{
CXBMCApp::android_printf(" => aborting touch event because there are no active pointers");
return false;
}
if (numPointers > TOUCH_MAX_POINTERS)
numPointers = TOUCH_MAX_POINTERS;
int32_t eventAction = AMotionEvent_getAction(event);
int8_t touchAction = eventAction & AMOTION_EVENT_ACTION_MASK;
size_t touchPointer = eventAction >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
TouchInput touchEvent = TouchInputAbort;
switch (touchAction)
{
case AMOTION_EVENT_ACTION_DOWN:
case AMOTION_EVENT_ACTION_POINTER_DOWN:
touchEvent = TouchInputDown;
break;
case AMOTION_EVENT_ACTION_UP:
case AMOTION_EVENT_ACTION_POINTER_UP:
touchEvent = TouchInputUp;
break;
case AMOTION_EVENT_ACTION_MOVE:
touchEvent = TouchInputMove;
break;
case AMOTION_EVENT_ACTION_OUTSIDE:
case AMOTION_EVENT_ACTION_CANCEL:
default:
break;
}
float x = AMotionEvent_getX(event, touchPointer);
float y = AMotionEvent_getY(event, touchPointer);
float size = m_dpi / 16.0f;
int64_t time = AMotionEvent_getEventTime(event);
// first update all touch pointers
for (unsigned int pointer = 0; pointer < numPointers; pointer++)
CGenericTouchInputHandler::Get().UpdateTouchPointer(pointer, AMotionEvent_getX(event, pointer), AMotionEvent_getY(event, pointer),
AMotionEvent_getEventTime(event), m_dpi / 16.0f);
// now send the event
return CGenericTouchInputHandler::Get().HandleTouchInput(touchEvent, x, y, time, touchPointer, size);
}
void CAndroidTouch::setDPI(uint32_t dpi)
{
if (dpi != 0)
{
m_dpi = dpi;
CGenericTouchInputHandler::Get().SetScreenDPI(m_dpi);
}
}