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();
}
