DrawOpQueue()
{
// Every queue has a base transform that is always the current transform.
// This keeps the code a bit more uniform, and allows the window to
// set a base transform in the main rendering queue.
individualTransforms.push_back(scale(1));
absoluteTransforms.push_back(scale(1));
}
void makeCurrentTransform(const Transform& transform)
{
Transforms::iterator oldPosition =
std::find(absoluteTransforms.begin(), absoluteTransforms.end(), transform);
if (oldPosition == absoluteTransforms.end())
absoluteTransforms.push_back(transform);
else
absoluteTransforms.splice(absoluteTransforms.end(), absoluteTransforms, oldPosition);
}
void pushTransform(const Transform& transform)
{
individualTransforms.push_back(transform);
Transform result = multiply(transform, currentTransform());
makeCurrentTransform(result);
}