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 CBooleanLogicValue : public IXmlDeserializable
  23 {
  24 public:
  25   CBooleanLogicValue(const std::string &value = "", bool negated = false)
  26     : m_value(value), m_negated(negated)
  27   { }
  28   ~CBooleanLogicValue() override = default;
  29
  30   bool Deserialize(const TiXmlNode *node) override;
  31
  32   virtual const std::string& GetValue() const { return m_value; }
  33   virtual bool IsNegated() const { return m_negated; }
  34   virtual const char* GetTag() const { return "value"; }
  35
  36   virtual void SetValue(const std::string &value) { m_value = value; }
  37   virtual void SetNegated(bool negated) { m_negated = negated; }
  38
  39 protected:
  40   std::string m_value;
  41   bool m_negated;
  42 };
  43
  44 typedef std::shared_ptr<CBooleanLogicValue> CBooleanLogicValuePtr;
  45 typedef std::vector<CBooleanLogicValuePtr> CBooleanLogicValues;
  46
  47 class CBooleanLogicOperation;
  48 typedef std::shared_ptr<CBooleanLogicOperation> CBooleanLogicOperationPtr;
  49 typedef std::vector<CBooleanLogicOperationPtr> CBooleanLogicOperations;
  50
  51 class CBooleanLogicOperation : public IXmlDeserializable
  52 {
  53 public:
  54   explicit CBooleanLogicOperation(BooleanLogicOperation op = BooleanLogicOperationAnd)
  55     : m_operation(op)
  56   { }
  57   ~CBooleanLogicOperation() override = default;
  58
  59   bool Deserialize(const TiXmlNode *node) override;
  60
  61   virtual BooleanLogicOperation GetOperation() const { return m_operation; }
  62   virtual const CBooleanLogicOperations& GetOperations() const { return m_operations; }
  63   virtual const CBooleanLogicValues& GetValues() const { return m_values; }
  64
  65   virtual void SetOperation(BooleanLogicOperation op) { m_operation = op; }
  66
  67 protected:
  68   virtual CBooleanLogicOperation* newOperation() { return new CBooleanLogicOperation(); }
  69   virtual CBooleanLogicValue* newValue() { return new CBooleanLogicValue(); }
  70
  71   BooleanLogicOperation m_operation;
  72   CBooleanLogicOperations m_operations;
  73   CBooleanLogicValues m_values;
  74 };
  75
  76 class CBooleanLogic : public IXmlDeserializable
  77 {
  78 protected:
  79   /* make sure nobody deletes a pointer to this class */
  80   ~CBooleanLogic() override = default;
  81
  82 public:
  83   bool Deserialize(const TiXmlNode *node) override;
  84
  85   const CBooleanLogicOperationPtr& Get() const { return m_operation; }
  86   CBooleanLogicOperationPtr Get() { return m_operation; }
  87
  88 protected:
  89   CBooleanLogicOperationPtr m_operation;
  90 };