/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Guido Tack <tack@gecode.org>
 *
 *  Contributing authors:
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     Guido Tack, 2004, 2006
 *     Christian Schulte, 2004
 *
 *  Last modified:
 *     $Date: 2008-01-24 13:05:13 +0100 (Thu, 24 Jan 2008) $ by $Author: tack $
 *     $Revision: 5974 $
 *
 *  This file is part of Gecode, the generic constraint
 *  development environment:
 *     http://www.gecode.org
 *
 *  Permission is hereby granted, free of charge, to any person obtaining
 *  a copy of this software and associated documentation files (the
 *  "Software"), to deal in the Software without restriction, including
 *  without limitation the rights to use, copy, modify, merge, publish,
 *  distribute, sublicense, and/or sell copies of the Software, and to
 *  permit persons to whom the Software is furnished to do so, subject to
 *  the following conditions:
 *
 *  The above copyright notice and this permission notice shall be
 *  included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

namespace Gecode { namespace Set {

  template <class View>
  forceinline
  OffsetSetView<View>::OffsetSetView(void) {}

  template <class View>
  forceinline
  OffsetSetView<View>::OffsetSetView(View& s0, int k0)
    : DerivedViewBase<View>(s0), k(k0) {}

  template <class View>
  forceinline
  OffsetSetView<View>::OffsetSetView(Space* home,
                                     const Reflection::VarMap& vars,
                                     Reflection::Arg* arg)
  : DerivedViewBase<View>(View(home, vars, arg->second())), 
    k(arg->first()->toInt()) {}

  template <class View>
  forceinline bool
  OffsetSetView<View>::assigned(void) const { return view.assigned(); }

  template <class View>
  forceinline unsigned int
  OffsetSetView<View>::glbSize(void) const {
    return view.glbSize();
  }

  template <class View>
  forceinline unsigned int
  OffsetSetView<View>::lubSize(void) const {
    return view.lubSize();
  }

  template <class View>
  forceinline unsigned int
  OffsetSetView<View>::unknownSize(void) const {
    return view.unknownSize();
  }

  template <class View>
  forceinline int
  OffsetSetView<View>::offset(void) const {
    return k;
  }

  template <class View>
  forceinline bool
  OffsetSetView<View>::contains(int n) const {
    return view.contains(n-k);
  }

  template <class View>
  forceinline bool
  OffsetSetView<View>::notContains(int n) const {
    return view.notContains(n-k);
  }

  template <class View>
  forceinline unsigned int
  OffsetSetView<View>::cardMin() const {
    return view.cardMin();
  }

  template <class View>
  forceinline unsigned int
  OffsetSetView<View>::cardMax() const {
    return view.cardMax();
  }

  template <class View>
  forceinline int
  OffsetSetView<View>::lubMin() const {
    if (view.cardMax() == 0)
      return view.lubMin();
    return view.lubMin() + k;
  }

  template <class View>
  forceinline int
  OffsetSetView<View>::lubMax() const {
    if (view.cardMax() == 0)
      return view.lubMax();
    return view.lubMax() + k;
  }

  template <class View>
  forceinline int
  OffsetSetView<View>::glbMin() const {
    if (view.cardMax() == 0)
      return view.glbMin();
    return view.glbMin() + k;
  }

  template <class View>
  forceinline int
  OffsetSetView<View>::glbMax() const {
    if (view.cardMax() == 0)
      return view.glbMax();
    return view.glbMax() + k;
  }

  template <class View>
  forceinline ModEvent
  OffsetSetView<View>::cardMin(Space* home, unsigned int c) {
    return view.cardMin(home, c);
  }

  template <class View>
  forceinline ModEvent
  OffsetSetView<View>::cardMax(Space* home, unsigned int c) {
    return view.cardMax(home, c);
  }

  template <class View>
  forceinline ModEvent
  OffsetSetView<View>::include(Space* home, int c) {
    return view.include(home, c-k);
  }

  template <class View>
  forceinline ModEvent
  OffsetSetView<View>::exclude(Space* home, int c) {
    return view.exclude(home, c-k);
  }

  template <class View>
  forceinline ModEvent
  OffsetSetView<View>::intersect(Space* home, int c) {
    return view.intersect(home, c-k);
  }

  template <class View>
  forceinline ModEvent
  OffsetSetView<View>::intersect(Space* home, int i, int j) {
    return view.intersect(home, i-k, j-k);
  }

  template <class View>
  forceinline ModEvent
  OffsetSetView<View>::include(Space* home, int i, int j) {
    return view.include(home, i-k, j-k);
  }

  template <class View>
  forceinline ModEvent
  OffsetSetView<View>::exclude(Space* home, int i, int j) {
    return view.exclude(home, i-k, j-k);
  }

  template <class View>
  template <class I> ModEvent
  OffsetSetView<View>::excludeI(Space* home,I& iter) {
    Iter::Ranges::Offset<I> off(iter, -k);
    return view.excludeI(home, off);
  }

  template <class View>
  template <class I> ModEvent
  OffsetSetView<View>::includeI(Space* home,I& iter) {
    Iter::Ranges::Offset<I> off(iter, -k);
    return view.includeI(home, off);
  }

  template <class View>
  template <class I> ModEvent
  OffsetSetView<View>::intersectI(Space* home,I& iter) {
    Iter::Ranges::Offset<I> off(iter, -k);
    return view.intersectI(home, off);
  }

  template <class View>
  forceinline void
  OffsetSetView<View>::subscribe(Space* home, Propagator* p, PropCond pc,
                                  bool process) {
    view.subscribe(home,p, pc,process);
  }

  template <class View>
  forceinline void
  OffsetSetView<View>::cancel(Space* home, Propagator* p, PropCond pc) {
    view.cancel(home,p, pc);
  }

  template <class View>
  forceinline void
  OffsetSetView<View>::subscribe(Space* home, Advisor* a) {
    view.subscribe(home,a);
  }

  template <class View>
  forceinline void
  OffsetSetView<View>::cancel(Space* home, Advisor* a) {
    view.cancel(home,a);
  }

  template <class View>
  forceinline void
  OffsetSetView<View>::schedule(Space* home, Propagator* p, ModEvent me) {
    return View::schedule(home,p,me);
  }
  template <class View>
  forceinline ModEvent
  OffsetSetView<View>::me(ModEventDelta med) {
    return View::me(med);
  }

  template <class View>
  forceinline ModEventDelta
  OffsetSetView<View>::med(ModEvent me) {
    return View::med(me);
  }

  template <class View>
  forceinline void
  OffsetSetView<View>::update(Space* home, bool share, 
                               OffsetSetView& y) {
    k = y.k;
    view.update(home,share,y.view);
  }

  template <class View>
  forceinline Reflection::Arg*
  OffsetSetView<View>::spec(const Space* home, Reflection::VarMap& m) const {
    return Reflection::Arg::newPair(Reflection::Arg::newInt(k), 
                                    view.spec(home, m));
  }

  template <class View>
  inline Support::Symbol
  OffsetSetView<View>::type(void) {
    Support::Symbol t("Set::OffsetSetView<");
    t += View::type();
    t += ">";
    return t;
  }

  /*
   * Delta information for advisors
   *
   */

  template <class View>
  forceinline ModEvent
  OffsetSetView<View>::modevent(const Delta* d) {
    return View::modevent(d);
  }
  
  template <class View>
  forceinline int
  OffsetSetView<View>::glbMin(const Delta* d) const {
    return view.glbMin(d)+k;
  }

  template <class View>
  forceinline int
  OffsetSetView<View>::glbMax(const Delta* d) const {
    return view.glbMax(d)+k;
  }

  template <class View>
  forceinline bool
  OffsetSetView<View>::glbAny(const Delta* d) const {
    return view.glbAny(d);
  }

  template <class View>
  forceinline int
  OffsetSetView<View>::lubMin(const Delta* d) const {
    return view.lubMin(d)+k;
  }

  template <class View>
  forceinline int
  OffsetSetView<View>::lubMax(const Delta* d) const {
    return view.lubMax(d)+k;
  }

  template <class View>
  forceinline bool
  OffsetSetView<View>::lubAny(const Delta* d) const {
    return view.lubAny(d);
  }

  /**
   * \brief %Range iterator for least upper bound of offset set views
   * \ingroup TaskActorSetView
   */
  template <class View>
  class LubRanges<OffsetSetView<View> > : public Iter::Ranges::Offset<LubRanges<View> > {
  private:
    LubRanges<View> ub;
    Iter::Ranges::Offset<LubRanges<View> > ubo;
  public:
    /// \name Constructors and initialization
    //@{
    /// Default constructor
    LubRanges(void) {}
    /// Initialize with ranges for view \a x
    LubRanges(const OffsetSetView<View>& x);
    /// Initialize with ranges for view \a x
    void init(const OffsetSetView<View>& x);

    /// \name Iteration control
    //@{
    /// Test whether iterator is still at a range or done
    bool operator()(void) const;
    /// Move iterator to next range (if possible)
    void operator++(void);
    //@}

    /// \name Range access
    //@{
    /// Return smallest value of range
    int min(void) const;
    /// Return largest value of range
    int max(void) const;
    /// Return width of ranges (distance between minimum and maximum)
    unsigned int width(void) const;
    //@}
  };

  template <class View>
  forceinline
  LubRanges<OffsetSetView<View> >::LubRanges(const OffsetSetView<View>& s)
    : ub(s.base()), ubo(ub, s.offset()) {}

  template <class View>
  forceinline void
  LubRanges<OffsetSetView<View> >::init(const OffsetSetView<View>& s) {
    ub.init(s.base());
    ubo.init(ub, s.offset());
  }

  template <class View>
  forceinline bool
  LubRanges<OffsetSetView<View> >::operator()(void) const { return ubo(); }

  template <class View>
  forceinline void
  LubRanges<OffsetSetView<View> >::operator++(void) { return ++ubo; }

  template <class View>
  forceinline int
  LubRanges<OffsetSetView<View> >::min(void) const { return ubo.min(); }

  template <class View>
  forceinline int
  LubRanges<OffsetSetView<View> >::max(void) const { return ubo.max(); }

  template <class View>
  forceinline unsigned int
  LubRanges<OffsetSetView<View> >::width(void) const { return ubo.width(); }


  /**
   * \brief %Range iterator for greatest lower bound of offset set views
   * \ingroup TaskActorSetView
   */
  template <class View>
  class GlbRanges<OffsetSetView<View> > {
  private:
    GlbRanges<View> lb;
    Iter::Ranges::Offset<GlbRanges<View> > lbo;
  public:
    /// \name Constructors and initialization
    //@{
    /// Default constructor
    GlbRanges(void) {}
    /// Initialize with ranges for view \a x
    GlbRanges(const OffsetSetView<View> & x);
    /// Initialize with ranges for view \a x
    void init(const OffsetSetView<View> & x);

    /// \name Iteration control
    //@{
    /// Test whether iterator is still at a range or done
    bool operator()(void) const;
    /// Move iterator to next range (if possible)
    void operator++(void);
    //@}

    /// \name Range access
    //@{
    /// Return smallest value of range
    int min(void) const;
    /// Return largest value of range
    int max(void) const;
    /// Return width of ranges (distance between minimum and maximum)
    unsigned int width(void) const;
    //@}
  };

  template <class View>
  forceinline
  GlbRanges<OffsetSetView<View> >::GlbRanges(const OffsetSetView<View> & s)
    : lb(s.base()), lbo(lb, s.offset()) {}

  template <class View>
  forceinline void
  GlbRanges<OffsetSetView<View> >::init(const OffsetSetView<View> & s) {
    lb.init(s.base());
    lbo.init(lb, s.offset());
  }

  template <class View>
  forceinline bool
  GlbRanges<OffsetSetView<View> >::operator()(void) const { return lbo(); }

  template <class View>
  forceinline void
  GlbRanges<OffsetSetView<View> >::operator++(void) { return ++lbo; }

  template <class View>
  forceinline int
  GlbRanges<OffsetSetView<View> >::min(void) const { return lbo.min(); }

  template <class View>
  forceinline int
  GlbRanges<OffsetSetView<View> >::max(void) const { return lbo.max(); }

  template <class View>
  forceinline unsigned int
  GlbRanges<OffsetSetView<View> >::width(void) const { return lbo.width(); }
  
}


  /*
   * Testing
   *
   */
  template <class View>
  forceinline bool
  same(const Set::OffsetSetView<View>& x, 
       const Set::OffsetSetView<View>& y) {
    return same(x.base(),y.base());
  }
  template <class View>
  forceinline bool
  before(const Set::OffsetSetView<View>& x, 
         const Set::OffsetSetView<View>& y) {
    return before(x.base(),y.base());
  }

}

template <class View>
forceinline
std::ostream&
operator<<(std::ostream& os, const Gecode::Set::OffsetSetView<View>& s) {
  return os << "(" << s.base() << ")+"<<s.offset();
}

// STATISTICS: set-var