How to get the number of loop when using an iterator, in C++?
- by pollux
Dear reader,
I'm working on a aplication where I draw a couple of images, like this:
void TimeSlice::draw(float fX, float fY) {
list<TimeSliceLevel*>::iterator it = levels.begin();
float level_x = x;
float level_y = y;
while(it != levels.end()) {
(*it)->draw(level_x,level_y);
level_y += (*it)->height;
++it;
}
}
Though this is a bit incorrect. I need to position the TimeSliceLevel* on a X.. When I've
got a for(int i = 0; i < slices.size(); ++i) loop, I can use x = i * width. Though I'm using an iterator as I've been told many times that's good programming : and I'm wondering if the iterator has a "index" number of something which I can use to calculate the new X position? (So it's more a question about using iterators)
Kind regards,
Pollux
