bwStyleProperties.h

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#pragma once
 
#include <memory>
#include <optional>
#include <string>
#include <vector>
 
namespace bWidgets {
 
class bwColor;
 
class bwStyleProperty {
  template<typename> friend class bwStylePropertyInternal;
 
 public:
  enum class Type {
    BOOL,
    INTEGER,
    FLOAT,
    COLOR,
  };
 
  void setValue(bool);
  void setValue(int);
  void setValue(float);
  void setValue(const bwColor&);
  void setValue(const bwStyleProperty&);
  void setValueToDefault();
 
  void setDefaultValue(bool);
  void setDefaultValue(int);
  void setDefaultValue(float);
  void setDefaultValue(const bwColor&);
 
  auto getIdentifier() const -> std::string_view;
  auto getType() const -> Type;
 
 private:
  bwStyleProperty(std::string_view identifier, enum Type type);
 
  const std::string identifier;
  enum Type type;
};
 
class bwStyleProperties {
 public:
  // Store properties as pointer, they are actually created as bwStylePropertyInternal instances.
  using PropertyList = std::vector<std::unique_ptr<bwStyleProperty>>;
  using iterator = PropertyList::iterator;
  using const_iterator = PropertyList::const_iterator;
 
  auto addBool(const std::string_view& name, bool& reference) -> bwStyleProperty&;
  auto addBool(const std::string_view& name) -> bwStyleProperty&;
  auto addInteger(const std::string_view& name, int& reference) -> bwStyleProperty&;
  auto addInteger(const std::string_view& name) -> bwStyleProperty&;
  auto addFloat(const std::string_view& name, float& reference) -> bwStyleProperty&;
  auto addFloat(const std::string_view& name) -> bwStyleProperty&;
  auto addColor(const std::string_view& name, class bwColor& reference) -> bwStyleProperty&;
  auto addColor(const std::string_view& name) -> bwStyleProperty&;
  auto addProperty(const std::string_view& name, const bwStyleProperty::Type prop_type)
      -> bwStyleProperty&;
 
  auto lookup(const std::string_view& name) const -> const bwStyleProperty*;
 
  auto begin() -> iterator;
  auto end() -> iterator;
  auto begin() const -> const_iterator;
  auto end() const -> const_iterator;
 
 private:
  PropertyList properties{};
};
 
}  // namespace bWidgets