void VRTUIODevice::appendNewInputEventsSinceLastCall(VRDataQueue *inputEvents)
{
// Send out events for TUIO "cursors" by polling the TuioClient for the current state
std::list<TuioCursor*> cursorList = _tuioClient->getTuioCursors();
_tuioClient->lockCursorList();
// Send "button" up events for cursors that were down last frame, but are now up.
std::vector<int> downLast;
for (std::set<int>::iterator downLast_it = _cursorsDown.begin(); downLast_it!= _cursorsDown.end(); ++downLast_it ) {
downLast.push_back(*downLast_it);
}
for (int i=0;i<downLast.size();i++) {
bool stillDown = false;
for (std::list<TuioCursor*>::iterator iter = cursorList.begin(); iter!=cursorList.end(); iter++) {
TuioCursor *tcur = (*iter);
if (tcur->getCursorID() == downLast[i]) {
stillDown = true;
}
}
if (!stillDown) {
std::string event = "Touch_Cursor_Up";
_dataIndex.addData(event + "/Id", downLast[i]);
inputEvents->push(_dataIndex.serialize(event));
_cursorsDown.erase(downLast[i]);
}
}
// Send "button" down events for cursors that are new and updated positions for all cursors
for (std::list<TuioCursor*>::iterator iter = cursorList.begin(); iter!=cursorList.end(); iter++) {
TuioCursor *tcur = (*iter);
if (_cursorsDown.find(tcur->getCursorID()) == _cursorsDown.end()) {
std::string event = "Touch_Cursor_Down";
_dataIndex.addData(event + "/Id", tcur->getCursorID());
_dataIndex.addData(event + "/XPos", _xScale*tcur->getX());
_dataIndex.addData(event + "/YPos", _yScale*tcur->getY());
inputEvents->push(_dataIndex.serialize(event));
_cursorsDown.insert(tcur->getCursorID());
}
if (tcur->getMotionSpeed() > 0.0) {
std::string event = "Touch_Cursor_Move";
_dataIndex.addData(event + "/Id", tcur->getCursorID());
_dataIndex.addData(event + "/XPos", _xScale*tcur->getX());
_dataIndex.addData(event + "/YPos", _yScale*tcur->getY());
inputEvents->push(_dataIndex.serialize(event));
}
// Can also access several other properties of cursors (speed, acceleration, path followed, etc.)
//std::cout << "cur " << tcur->getCursorID() << " (" << tcur->getSessionID() << ") " << tcur->getX() << " " << tcur->getY()
// << " " << tcur->getMotionSpeed() << " " << tcur->getMotionAccel() << " " << std::endl;
// This is how to access all the points in the path that a cursor follows:
//std::list<TuioPoint> path = tuioCursor->getPath();
//if (path.size() > 0) {
// TuioPoint last_point = path.front();
// for (std::list<TuioPoint>::iterator point = path.begin(); point!=path.end(); point++) {
// last_point.update(point->getX(),point->getY());
// }
//}
}
_tuioClient->unlockCursorList();
}
