/*************************************************************************/
/*  canvas_modulate.cpp                                                  */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/*                                                                       */
/* 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.                */
/*************************************************************************/

#include "canvas_modulate.h"

void CanvasModulate::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_ENTER_CANVAS: {
			if (is_visible_in_tree()) {
				RS::get_singleton()->canvas_set_modulate(get_canvas(), color);
				add_to_group("_canvas_modulate_" + itos(get_canvas().get_id()));
			}
		} break;

		case NOTIFICATION_EXIT_CANVAS: {
			if (is_visible_in_tree()) {
				RS::get_singleton()->canvas_set_modulate(get_canvas(), Color(1, 1, 1, 1));
				remove_from_group("_canvas_modulate_" + itos(get_canvas().get_id()));
			}
		} break;

		case NOTIFICATION_VISIBILITY_CHANGED: {
			if (is_visible_in_tree()) {
				RS::get_singleton()->canvas_set_modulate(get_canvas(), color);
				add_to_group("_canvas_modulate_" + itos(get_canvas().get_id()));
			} else {
				RS::get_singleton()->canvas_set_modulate(get_canvas(), Color(1, 1, 1, 1));
				remove_from_group("_canvas_modulate_" + itos(get_canvas().get_id()));
			}

			update_configuration_warnings();
		} break;
	}
}

void CanvasModulate::_bind_methods() {
	ClassDB::bind_method(D_METHOD("set_color", "color"), &CanvasModulate::set_color);
	ClassDB::bind_method(D_METHOD("get_color"), &CanvasModulate::get_color);

	ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), "set_color", "get_color");
}

void CanvasModulate::set_color(const Color &p_color) {
	color = p_color;
	if (is_visible_in_tree()) {
		RS::get_singleton()->canvas_set_modulate(get_canvas(), color);
	}
}

Color CanvasModulate::get_color() const {
	return color;
}

PackedStringArray CanvasModulate::get_configuration_warnings() const {
	PackedStringArray warnings = Node::get_configuration_warnings();

	if (is_visible_in_tree() && is_inside_tree()) {
		List<Node *> nodes;
		get_tree()->get_nodes_in_group("_canvas_modulate_" + itos(get_canvas().get_id()), &nodes);

		if (nodes.size() > 1) {
			warnings.push_back(RTR("Only one visible CanvasModulate is allowed per scene (or set of instantiated scenes). The first created one will work, while the rest will be ignored."));
		}
	}

	return warnings;
}

CanvasModulate::CanvasModulate() {
}

CanvasModulate::~CanvasModulate() {
}