TuioBlob* TuioManager::addTuioBlob(float x, float y, float a, float w, float h, float f) {
sessionID++;
int blobID = (int)blobList.size();
if ((int)(blobList.size())<=maxBlobID) {
std::list<TuioBlob*>::iterator closestBlob = freeBlobList.begin();
for(std::list<TuioBlob*>::iterator iter = freeBlobList.begin();iter!= freeBlobList.end(); iter++) {
if((*iter)->getDistance(x,y)<(*closestBlob)->getDistance(x,y)) closestBlob = iter;
}
TuioBlob *freeBlob = (*closestBlob);
blobID = (*closestBlob)->getBlobID();
freeBlobList.erase(closestBlob);
delete freeBlob;
} else maxBlobID = blobID;
TuioBlob *tblb = new TuioBlob(currentFrameTime, sessionID, blobID, x, y, a, w, h, f);
blobList.push_back(tblb);
updateBlob = true;
for (std::list<TuioListener*>::iterator listener=listenerList.begin(); listener != listenerList.end(); listener++)
(*listener)->addTuioBlob(tblb);
if (verbose)
std::cout << "add blb " << tblb->getBlobID() << " (" << tblb->getSessionID() << ") " << tblb->getX() << " " << tblb->getY() << tblb->getAngle() << " " << tblb->getWidth() << tblb->getHeight() << " " << tblb->getArea() << std::endl;
return tblb;
}
std::list<TuioBlob*> TuioManager::getUntouchedBlobs() {
std::list<TuioBlob*> untouched;
for (std::list<TuioBlob*>::iterator tuioBlob = blobList.begin(); tuioBlob!=blobList.end(); tuioBlob++) {
TuioBlob *tblb = (*tuioBlob);
if (tblb->getTuioTime()!=currentFrameTime) untouched.push_back(tblb);
}
return untouched;
}
void TuioManager::removeUntouchedStoppedBlobs() {
std::list<TuioBlob*>::iterator tuioBlob = blobList.begin();
while (tuioBlob!=blobList.end()) {
TuioBlob *tblb = (*tuioBlob);
if ((tblb->getTuioTime()!=currentFrameTime) && (!tblb->isMoving())) {
removeTuioBlob(tblb);
tuioBlob = blobList.begin();
} else tuioBlob++;
}
}
void TuioManager::stopUntouchedMovingBlobs() {
std::list<TuioBlob*> untouched;
for (std::list<TuioBlob*>::iterator tuioBlob = blobList.begin(); tuioBlob!=blobList.end(); tuioBlob++) {
TuioBlob *tblb = (*tuioBlob);
if ((tblb->getTuioTime()!=currentFrameTime) && (tblb->isMoving())) {
tblb->stop(currentFrameTime);
updateBlob = true;
if (verbose)
std::cout << "set blb " << tblb->getSessionID() << tblb->getX() << " " << tblb->getY() << " " << tblb->getWidth() << " " << tblb->getHeight() << " " << tblb->getAngle()
<< " " << tblb->getXSpeed() << " " << tblb->getYSpeed()<< " " << tblb->getMotionAccel() << " " << std::endl;
}
}
}
void TuioManager::removeTuioBlob(TuioBlob *tblb) {
if (tblb==NULL) return;
blobList.remove(tblb);
tblb->remove(currentFrameTime);
updateBlob = true;
for (std::list<TuioListener*>::iterator listener=listenerList.begin(); listener != listenerList.end(); listener++)
(*listener)->removeTuioBlob(tblb);
if (verbose)
std::cout << "del blb " << tblb->getBlobID() << " (" << tblb->getSessionID() << ")" << std::endl;
if (tblb->getBlobID()==maxBlobID) {
maxBlobID = -1;
delete tblb;
if (blobList.size()>0) {
std::list<TuioBlob*>::iterator clist;
for (clist=blobList.begin(); clist != blobList.end(); clist++) {
int blobID = (*clist)->getBlobID();
if (blobID>maxBlobID) maxBlobID=blobID;
}
freeBlobBuffer.clear();
for (std::list<TuioBlob*>::iterator flist=freeBlobList.begin(); flist != freeBlobList.end(); flist++) {
TuioBlob *freeBlob = (*flist);
if (freeBlob->getBlobID()>maxBlobID) delete freeBlob;
else freeBlobBuffer.push_back(freeBlob);
}
freeBlobList = freeBlobBuffer;
} else {
for (std::list<TuioBlob*>::iterator flist=freeBlobList.begin(); flist != freeBlobList.end(); flist++) {
TuioBlob *freeBlob = (*flist);
delete freeBlob;
}
freeBlobList.clear();
}
} else if (tblb->getBlobID()<maxBlobID) {
freeBlobList.push_back(tblb);
}
}
void TuioDemo::drawObjects() {
glClear(GL_COLOR_BUFFER_BIT);
char id[3];
// draw the cursors
std::list<TuioCursor*> cursorList = tuioClient->getTuioCursors();
tuioClient->lockCursorList();
for (std::list<TuioCursor*>::iterator iter = cursorList.begin(); iter!=cursorList.end(); iter++) {
TuioCursor *tuioCursor = (*iter);
std::list<TuioPoint> path = tuioCursor->getPath();
if (path.size()>0) {
TuioPoint last_point = path.front();
glBegin(GL_LINES);
glColor3f(0.0, 0.0, 1.0);
for (std::list<TuioPoint>::iterator point = path.begin(); point!=path.end(); point++) {
glVertex3f(last_point.getScreenX(width), last_point.getScreenY(height), 0.0f);
glVertex3f(point->getScreenX(width), point->getScreenY(height), 0.0f);
last_point.update(point->getX(),point->getY());
} glEnd();
// draw the finger tip
glColor3f(0.75, 0.75, 0.75);
glPushMatrix();
glTranslatef(last_point.getScreenX(width), last_point.getScreenY(height), 0.0);
glBegin(GL_TRIANGLE_FAN);
for(double a = 0.0f; a <= 2*M_PI; a += 0.2f) {
glVertex2d(cos(a) * height/100.0f, sin(a) * height/100.0f);
} glEnd();
glPopMatrix();
glColor3f(0.0, 0.0, 0.0);
glRasterPos2f(tuioCursor->getScreenX(width),tuioCursor->getScreenY(height));
sprintf(id,"%d",tuioCursor->getCursorID());
drawString(id);
}
}
tuioClient->unlockCursorList();
// draw the objects
std::list<TuioObject*> objectList = tuioClient->getTuioObjects();
tuioClient->lockObjectList();
for (std::list<TuioObject*>::iterator iter = objectList.begin(); iter!=objectList.end(); iter++) {
TuioObject *tuioObject = (*iter);
int pos_size = height/25.0f;
int neg_size = -1*pos_size;
float xpos = tuioObject->getScreenX(width);
float ypos = tuioObject->getScreenY(height);
float angle = tuioObject->getAngleDegrees();
glColor3f(0.0, 0.0, 0.0);
glPushMatrix();
glTranslatef(xpos, ypos, 0.0);
glRotatef(angle, 0.0, 0.0, 1.0);
glBegin(GL_QUADS);
glVertex2f(neg_size, neg_size);
glVertex2f(neg_size, pos_size);
glVertex2f(pos_size, pos_size);
glVertex2f(pos_size, neg_size);
glEnd();
glPopMatrix();
glColor3f(1.0, 1.0, 1.0);
glRasterPos2f(xpos,ypos+5);
sprintf(id,"%d",tuioObject->getSymbolID());
drawString(id);
}
tuioClient->unlockObjectList();
// draw the blobs
std::list<TuioBlob*> blobList = tuioClient->getTuioBlobs();
tuioClient->lockBlobList();
for (std::list<TuioBlob*>::iterator iter = blobList.begin(); iter!=blobList.end(); iter++) {
TuioBlob *tuioBlob = (*iter);
float blob_width = tuioBlob->getScreenWidth(width)/2;
float blob_height = tuioBlob->getScreenHeight(height)/2;
float xpos = tuioBlob->getScreenX(width);
float ypos = tuioBlob->getScreenY(height);
float angle = tuioBlob->getAngleDegrees();
glColor3f(0.25, 0.25, 0.25);
glPushMatrix();
glTranslatef(xpos, ypos, 0.0);
glRotatef(angle, 0.0, 0.0, 1.0);
/*glBegin(GL_QUADS);
glVertex2f(blob_width/-2, blob_height/-2);
glVertex2f(blob_width/-2, blob_height/2);
glVertex2f(blob_width/2, blob_height/2);
glVertex2f(blob_width/2, blob_height/-2);
glEnd();*/
glBegin(GL_TRIANGLE_FAN);
for(double a = 0.0f; a <= 2*M_PI; a += 0.2f) {
glVertex2d(cos(a) * blob_width, sin(a) * blob_height);
} glEnd();
glPopMatrix();
glColor3f(1.0, 1.0, 1.0);
glRasterPos2f(xpos,ypos+5);
sprintf(id,"%d",tuioBlob->getBlobID());
drawString(id);
}
tuioClient->unlockBlobList();
SDL_GL_SwapBuffers();
}
