C++ TuioCursor::getScreenY方法代码示例

void IupTuioListener::finishCursorInfo(int cursor_count, int* px, int* py, int* pstate, int w, int h, int use_client_coord, Ihandle* ih_canvas)
{
  std::list<TuioCursor*>& cursorList = this->client->getCursorList();
  std::list <TuioCursor*>::iterator iter;
  std::list <TuioCursor*>::iterator end = cursorList.end();
  int i;

  for (i = 0, iter = cursorList.begin(); i<cursor_count && iter!=end; iter++, i++) 
  {
    if (pstate[i] == 0) /* if still 0, then it was not updated, must fill it here */
    {
      TuioCursor* tcur = (*iter);

      int x = tcur->getScreenX(w);
      int y = tcur->getScreenY(h);

      if (use_client_coord)
        iupdrvScreenToClient(ih_canvas, &x, &y);

      px[i] = x;
      py[i] = y;
      pstate[i] = 'M';  /* mark as MOVE */
    }
  }
}

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();
		
//.........这里部分代码省略.........

void SimpleSimulator::drawFrame() {

	if(!running) return;
	glClear(GL_COLOR_BUFFER_BIT);
	char id[3];

	// draw the cursors
	std::list<TuioCursor*> cursorList = tuioServer->getTuioCursors();
	for (std::list<TuioCursor*>::iterator iter = cursorList.begin(); iter!=cursorList.end(); iter++) {
		TuioCursor *tcur = (*iter);
		std::list<TuioPoint> path = tcur->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);
			std::list<TuioCursor*>::iterator joint = std::find( jointCursorList.begin(), jointCursorList.end(), tcur );
			if( joint != jointCursorList.end() ) {
				glColor3f(0.5, 0.5, 0.5);
			}
			glPushMatrix();
			glTranslatef(last_point.getScreenX(width), last_point.getScreenY(height), 0.0f);
			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(tcur->getScreenX(width),tcur->getScreenY(height));
			sprintf(id,"%d",tcur->getCursorID());
			drawString(id);
		}
	}

	if (help) {
		glColor3f(0.0, 0.0, 1.0);
		glRasterPos2f(10,20);
		drawString("h - toggle help display");
		glRasterPos2f(10,35);
		if (verbose) drawString("v - disable verbose mode");
		else drawString("v - enable verbose mode");
		glRasterPos2f(10,50);
		drawString("r - reset session");
		glRasterPos2f(10,65);
		if (tuioServer->fullUpdateEnabled()) drawString("f - disable full update");
		else drawString("f - enable full update");
		glRasterPos2f(10,80);
		if (tuioServer->periodicMessagesEnabled()) drawString("p - disable periodic messages");
		else drawString("p - enable periodic messages");
		glRasterPos2f(10,95);
		drawString("SHIFT click - create persistent cursor");
		glRasterPos2f(10,110);
		drawString("CTRL click - add to cursor group");
		glRasterPos2f(10,125);
		if (fullscreen) drawString("F1 - exit fullscreen mode");
		else drawString("F1 - enter fullscreen mode");
		glRasterPos2f(10,140);
		drawString("ESC - Quit");
	}

	SDL_GL_SwapBuffers();
}