/**************************************************************************/
/*  graph_element.h                                                       */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* Permission is hereby granted, free of charge, to any person obtaining  */
/* a copy of this software and associated documentation files (the        */
/* "Software"), to deal in the Software without restriction, including    */
/* without limitation the rights to use, copy, modify, merge, publish,    */
/* distribute, sublicense, and/or sell copies of the Software, and to     */
/* permit persons to whom the Software is furnished to do so, subject to  */
/* the following conditions:                                              */
/*                                                                        */
/* The above copyright notice and this permission notice shall be         */
/* included in all copies or substantial portions of the Software.        */
/*                                                                        */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
/**************************************************************************/

#pragma once

#include "scene/gui/container.h"

class GraphElement : public Container {
	GDCLASS(GraphElement, Container);

protected:
	bool selected = false;
	bool resizable = false;
	bool resizing = false;
	bool draggable = true;
	bool selectable = true;

	Vector2 drag_from;
	Vector2 resizing_from;
	Vector2 resizing_from_size;

	Vector2 position_offset;

	struct ThemeCache {
		Ref<Texture2D> resizer;
	} theme_cache;

#ifdef TOOLS_ENABLED
	void _edit_set_position(const Point2 &p_position) override;
#endif

protected:
	virtual void gui_input(const Ref<InputEvent> &p_ev) override;
	void _notification(int p_what);
	static void _bind_methods();

	virtual void _resort();

	void _validate_property(PropertyInfo &p_property) const;

public:
	void set_position_offset(const Vector2 &p_offset);
	Vector2 get_position_offset() const;

	void set_selected(bool p_selected);
	bool is_selected();

	void set_drag(bool p_drag);
	Vector2 get_drag_from();

	void set_resizable(bool p_enable);
	bool is_resizable() const;

	void set_draggable(bool p_draggable);
	bool is_draggable();

	void set_selectable(bool p_selectable);
	bool is_selectable();

	virtual Size2 get_minimum_size() const override;

	bool is_resizing() const {
		return resizing;
	}
};
