//---------------------------------------------------------------------------- // Anti-Grain Geometry (AGG) - Version 2.5 // A high quality rendering engine for C++ // Copyright (C) 2002-2006 Maxim Shemanarev // Contact: mcseem@antigrain.com // mcseemagg@yahoo.com // http://antigrain.com // // AGG is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 2 // of the License, or (at your option) any later version. // // AGG is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with AGG; if not, write to the Free Software // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, // MA 02110-1301, USA. //---------------------------------------------------------------------------- #ifndef AGG_BITSET_ITERATOR_INCLUDED #define AGG_BITSET_ITERATOR_INCLUDED #include "agg_basics.h" namespace agg { class bitset_iterator { public: bitset_iterator(const int8u* bits, unsigned offset = 0) : m_bits(bits + (offset >> 3)), m_mask(0x80 >> (offset & 7)) {} void operator ++ () { m_mask >>= 1; if(m_mask == 0) { ++m_bits; m_mask = 0x80; } } unsigned bit() const { return (*m_bits) & m_mask; } private: const int8u* m_bits; int8u m_mask; }; } #endif |