20 KiB
20 KiB
t00027 - Template decorator pattern
Config
diagrams:
t00027_class:
type: class
glob:
- t00027.cc
using_namespace: clanguml::t00027
include:
namespaces:
- clanguml::t00027
Source code
File tests/t00027/t00027.cc
#include <memory>
#include <tuple>
#include <type_traits>
namespace clanguml {
namespace t00027 {
class Shape {
public:
virtual void display() = 0;
virtual ~Shape() = default;
};
template <template <typename> class... T>
class Line : public Shape, public T<Line<>>... {
public:
void display() override
{
std::apply([](auto &&...x) { (x.display(), ...); },
std::forward_as_tuple(T<Line<>>()...));
}
};
template <template <typename> class... T>
class Text : public Shape, public T<Text<>>... {
public:
void display() override
{
std::apply([](auto &&...x) { (x.display(), ...); },
std::forward_as_tuple(T<Text<>>()...));
}
};
struct ShapeDecorator {
virtual void display() = 0;
};
template <typename T> class Color : public ShapeDecorator {
public:
void display() override { }
};
template <typename T> class Weight : public ShapeDecorator {
public:
void display() override { }
};
struct Window {
Line<Color, Weight> border;
Line<Color> divider;
Text<Color, Weight> title;
Text<Color> description;
};
} // namespace t00027
} // namespace clanguml
Generated PlantUML diagrams
Generated Mermaid diagrams
Generated JSON models
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{
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{
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},
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},
{
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},
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}
],
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},
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},
{
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},
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{
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{
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},
{
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{
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{
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{
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{
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{
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}