IntervalVariables.cs

// Copyright 2010-2018 Google LLC
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

namespace Google.OrTools.Sat
{
using System;
using System.Collections.Generic;

public class IntervalVar
{
  public IntervalVar(CpModelProto model,
                     int start_index, int size_index, int end_index,
                     int is_present_index, string name) {
    model_ = model;
    index_ = model.Constraints.Count;
    interval_ = new IntervalConstraintProto();
    interval_.Start = start_index;
    interval_.Size = size_index;
    interval_.End = end_index;

    ConstraintProto ct = new ConstraintProto();
    ct.Interval = interval_;
    ct.Name = name;
    ct.EnforcementLiteral.Add(is_present_index);
    model.Constraints.Add(ct);
  }

  public IntervalVar(CpModelProto model,
                     int start_index, int size_index, int end_index,
                     string name) {
    model_ = model;
    index_ = model.Constraints.Count;
    interval_ = new IntervalConstraintProto();
    interval_.Start = start_index;
    interval_.Size = size_index;
    interval_.End = end_index;

    ConstraintProto ct = new ConstraintProto();
    ct.Interval = interval_;
    ct.Name = name;
    model_.Constraints.Add(ct);
  }

  public int GetIndex()
  {
    return index_;
  }

  public IntervalConstraintProto Proto {
    get { return interval_; }
    set { interval_ = value; }
  }

  public override string ToString()
  {
    return model_.Constraints[index_].ToString();
  }

  public string Name()
  {
    return model_.Constraints[index_].Name;
  }

  private CpModelProto model_;
  private int index_;
  private IntervalConstraintProto interval_;
}

}  // namespace Google.OrTools.Sat