bool DialView::onTouchEvent(MotionEvent *event) {
if (!isEnabled() || (!inCircle((int) event->getX(), (int) event->getY()) && mTouchState == TOUCH_STATE_RESTING)) {
return false;
}
switch (event->getAction()) {
case MotionEvent::ACTION_DOWN:
{
startTouch(event);
break;
}
case MotionEvent::ACTION_MOVE:
{
if (mTouchState == TOUCH_STATE_CLICK) {
startRotationIfNeeded(event);
}
if (mTouchState == TOUCH_STATE_ROTATE) {
mVelocityTracker->addMovement(event);
rotateChart(event->getX(), event->getY());
}
break;
}
case MotionEvent::ACTION_UP:
{
float velocity = 0;
if (mTouchState == TOUCH_STATE_ROTATE) {
mVelocityTracker->addMovement(event);
mVelocityTracker->computeCurrentVelocity(PIXELS_PER_SECOND);
velocity = calculateVelocity();
}
endTouch(velocity);
break;
}
default:
{
endTouch(0);
break;
}
}
return true;
}
void TouchManager::dispatchTouchUp(int id, const ofVec2f &p)
{
// check if this touch exists
map<int, TouchEvent*>::iterator eventIt = touches.find(id);
if (eventIt == touches.end()) {
ofLogWarning("TouchManager", "received touchUp for id (%d) without touchDown. ignoring this touch.", id);
return;
}
// update touch info
TouchEvent* event = eventIt->second;
event->prevPosition = event->position;
event->prevVelocity = event->velocity;
event->prevTimestamp = event->timestamp;
event->position = p;
event->timestamp = ofGetSystemTimeMicros();
// there is a problem with calculating the velocity when delta time is too small
// sometimes we get events with delta time of 0 or 1 ms
if (event->timestamp - event->prevTimestamp > 5000) {
event->velocity = (p - event->prevPosition)*1000000 / (event->timestamp-event->prevTimestamp);
event->velocitySmoothed += (event->velocity-event->velocitySmoothed)*velocitySmoothCoeff;
}
Node* node = getComponentUnder(p);
if (node == NULL) {
ofLogError("TouchManager","could not find node for touchUp");
endTouch(id);
return;
}
if (event->receiver == NULL) {
ofLogNotice("TouchManager","this touch does not belong to any component");
endTouch(id);
return;
}
event->type = TouchEvent::TYPE_UP;
event->receiver->touchUp(id, event);
ofNotifyEvent(eventEveryTouchUp, *event, this);
endTouch(id);
}
void MenuItem::ccTouchEnded(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent) {
endTouch(pTouch);
}
