element.h

#pragma once

// pre-declares.
class Element;
class Tab;
class Form;

enum ElementFlags : size_t {
	NONE = 0 << 0,
	DRAW = 1 << 0,
	CLICK = 1 << 1,
	ACTIVE = 1 << 2,
	SAVE = 1 << 3,
	DEACIVATE = 1 << 4,
};

enum ElementTypes : size_t {
	CHECKBOX = 1,
	SLIDER,
	KEYBIND,
	DROPDOWN,
	COLORPICKER,
	MULTI_DROPDOWN,
	EDIT,
	BUTTON,
	CUSTOM
};

using ToggleCallback_t = void(*)();

#define LABEL_OFFSET 20

class Element {
	friend class GUI;
	friend class Tab;
	friend class Form;
	friend class Config;

protected:
	using ShowCallback_t = bool(*)();
	using Callback_t = void(*)();

protected:
	Point                         m_pos;
	int                           m_w;
	int                           m_h;
	int                           m_base_h;
	size_t                        m_col;
	Form* m_parent;
	std::string                   m_label;
	std::string                   m_file_id;
	size_t                        m_flags;
	size_t                        m_type;
	std::vector< ShowCallback_t > m_show_callbacks;
	Callback_t                    m_callback;
	bool			              m_show;
	bool                          m_use_label;

public:
	__forceinline Element() : m_pos{}, m_w{}, m_h{}, m_base_h{}, m_parent{ nullptr },
		m_label{}, m_file_id{}, m_flags{}, m_type{}, m_use_label{},
		m_show_callbacks{}, m_callback{}, m_show{} {}

	__forceinline void setup(const std::string& label, const std::string& file_id) {
		m_label = label;
		m_file_id = file_id;
	}

	__forceinline void AddFlags(size_t flags) {
		m_flags |= flags;
	}

	__forceinline void RemoveFlags(size_t flags) {
		m_flags &= ~flags;
	}

	__forceinline void AddShowCallback(ShowCallback_t scb) {
		m_show_callbacks.push_back(scb);
	}

	__forceinline void SetCallback(Callback_t cb) {
		m_callback = cb;
	}

	__forceinline void SetPosition(int x, int y) {
		m_pos.x = x;
		m_pos.y = y;
	}

protected:
	virtual void draw() {};
	virtual void think() {};
	virtual void click() {};
};