group.h

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#pragma once
 
#include "fl/stl/string.h"
#include "fl/stl/compiler_control.h"  // IWYU pragma: keep
#include "fl/stl/noexcept.h"
#include "fl/ui/element.h"
#include "platforms/ui_defs.h"
 
#ifndef FASTLED_HAS_UI_GROUP
#define FASTLED_HAS_UI_GROUP 0
#endif
 
namespace fl {
 
#if !FASTLED_HAS_UI_GROUP
 
class UIGroupImpl {
  public:
    UIGroupImpl(const char *name) FL_NOEXCEPT : mGroupName(name) {
        FASTLED_UNUSED(name);
    }
    ~UIGroupImpl() FL_NOEXCEPT {}
    fl::string name() const FL_NOEXCEPT { return mGroupName; }
 
  private:
    fl::string mGroupName;
};
 
#endif
 
class UIGroup {
  public:
    FL_NO_COPY(UIGroup);
 
    UIGroup(const fl::string& groupName) FL_NOEXCEPT;
 
    template<typename... UIElements>
    UIGroup(const fl::string& groupName, UIElements&... elements) FL_NOEXCEPT
        : mImpl(groupName.c_str()) {
        add(elements...);
    }
 
    ~UIGroup() FL_NOEXCEPT;
 
    fl::string name() const FL_NOEXCEPT { return mImpl.name(); }
 
    operator fl::string() const FL_NOEXCEPT { return name(); }
 
    template<typename T>
    void addControl(T* control) FL_NOEXCEPT {
        control->setGroup(name());
    }
 
  protected:
    UIGroupImpl mImpl;
 
  private:
    template<typename T>
    void add(T& control) FL_NOEXCEPT {
        control.setGroup(name());
    }
 
    template<typename T, typename... Rest>
    void add(T& control, Rest&... rest) FL_NOEXCEPT {
        control.setGroup(name());
        add(rest...);
    }
};
 
} // namespace fl