xbmc/utils/BooleanLogic.h

   1 /*
   2  *  Copyright (C) 2012-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #pragma once
  10
  11 #include "utils/IXmlDeserializable.h"
  12
  13 #include <memory>
  14 #include <string>
  15 #include <vector>
  16
  17 typedef enum {
  18   BooleanLogicOperationOr = 0,
  19   BooleanLogicOperationAnd
  20 } BooleanLogicOperation;
  21
  22 class TiXmlNode;
  23
  24 class CBooleanLogicValue : public IXmlDeserializable
  25 {
  26 public:
  27   CBooleanLogicValue(const std::string &value = "", bool negated = false)
  28     : m_value(value), m_negated(negated)
  29   { }
  30   ~CBooleanLogicValue() override = default;
  31
  32   bool Deserialize(const TiXmlNode *node) override;
  33
  34   virtual const std::string& GetValue() const { return m_value; }
  35   virtual bool IsNegated() const { return m_negated; }
  36   virtual const char* GetTag() const { return "value"; }
  37
  38   virtual void SetValue(const std::string &value) { m_value = value; }
  39   virtual void SetNegated(bool negated) { m_negated = negated; }
  40
  41 protected:
  42   std::string m_value;
  43   bool m_negated;
  44 };
  45
  46 typedef std::shared_ptr<CBooleanLogicValue> CBooleanLogicValuePtr;
  47 typedef std::vector<CBooleanLogicValuePtr> CBooleanLogicValues;
  48
  49 class CBooleanLogicOperation;
  50 typedef std::shared_ptr<CBooleanLogicOperation> CBooleanLogicOperationPtr;
  51 typedef std::vector<CBooleanLogicOperationPtr> CBooleanLogicOperations;
  52
  53 class CBooleanLogicOperation : public IXmlDeserializable
  54 {
  55 public:
  56   explicit CBooleanLogicOperation(BooleanLogicOperation op = BooleanLogicOperationAnd)
  57     : m_operation(op)
  58   { }
  59   ~CBooleanLogicOperation() override = default;
  60
  61   bool Deserialize(const TiXmlNode *node) override;
  62
  63   virtual BooleanLogicOperation GetOperation() const { return m_operation; }
  64   virtual const CBooleanLogicOperations& GetOperations() const { return m_operations; }
  65   virtual const CBooleanLogicValues& GetValues() const { return m_values; }
  66
  67   virtual void SetOperation(BooleanLogicOperation op) { m_operation = op; }
  68
  69 protected:
  70   virtual CBooleanLogicOperation* newOperation() { return new CBooleanLogicOperation(); }
  71   virtual CBooleanLogicValue* newValue() { return new CBooleanLogicValue(); }
  72
  73   BooleanLogicOperation m_operation;
  74   CBooleanLogicOperations m_operations;
  75   CBooleanLogicValues m_values;
  76 };
  77
  78 class CBooleanLogic : public IXmlDeserializable
  79 {
  80 protected:
  81   /* make sure nobody deletes a pointer to this class */
  82   ~CBooleanLogic() override = default;
  83
  84 public:
  85   bool Deserialize(const TiXmlNode *node) override;
  86
  87   const CBooleanLogicOperationPtr& Get() const { return m_operation; }
  88   CBooleanLogicOperationPtr Get() { return m_operation; }
  89
  90 protected:
  91   CBooleanLogicOperationPtr m_operation;
  92 };