Canvas(int w, int h)
: needToSort(false),
w(w),
h(h)
{
topLefts.push_back( Coord(0,0) );
}
bool Use(const Content<_T> &content) {
const Size &size = content.size;
const Coord &coord = content.coord;
topLefts.push_front ( Coord( coord.x + size.w, coord.y ) );
topLefts.push_back ( Coord( coord.x , coord.y + size.h ) );
contentVector.push_back( content );
needToSort = true;
return true;
}