136 lines
5.3 KiB
C++
136 lines
5.3 KiB
C++
/**************************************************************************/
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/* canvas_modulate.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "canvas_modulate.h"
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void CanvasModulate::_on_in_canvas_visibility_changed(bool p_new_visibility) {
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RID canvas = get_canvas();
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StringName group_name = "_canvas_modulate_" + itos(canvas.get_id());
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ERR_FAIL_COND_MSG(p_new_visibility == is_in_group(group_name), vformat("CanvasModulate becoming %s in the canvas already %s in the modulate group. Buggy logic, please report.", p_new_visibility ? "visible" : "invisible", p_new_visibility ? "was" : "was not"));
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if (p_new_visibility) {
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bool has_active_canvas_modulate = get_tree()->has_group(group_name); // Group would be removed if empty; otherwise one CanvasModulate within must be active.
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add_to_group(group_name);
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if (!has_active_canvas_modulate) {
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is_active = true;
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RS::get_singleton()->canvas_set_modulate(canvas, color);
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}
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} else {
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remove_from_group(group_name);
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if (is_active) {
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is_active = false;
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CanvasModulate *new_active = Object::cast_to<CanvasModulate>(get_tree()->get_first_node_in_group(group_name));
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if (new_active) {
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new_active->is_active = true;
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RS::get_singleton()->canvas_set_modulate(canvas, new_active->color);
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} else {
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RS::get_singleton()->canvas_set_modulate(canvas, Color(1, 1, 1, 1));
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}
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}
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}
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update_configuration_warnings();
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}
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void CanvasModulate::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_ENTER_CANVAS: {
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is_in_canvas = true;
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bool visible_in_tree = is_visible_in_tree();
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if (visible_in_tree) {
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_on_in_canvas_visibility_changed(true);
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}
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was_visible_in_tree = visible_in_tree;
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} break;
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case NOTIFICATION_EXIT_CANVAS: {
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is_in_canvas = false;
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if (was_visible_in_tree) {
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_on_in_canvas_visibility_changed(false);
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}
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} break;
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case NOTIFICATION_VISIBILITY_CHANGED: {
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if (!is_in_canvas) {
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return;
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}
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bool visible_in_tree = is_visible_in_tree();
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if (visible_in_tree == was_visible_in_tree) {
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return;
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}
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_on_in_canvas_visibility_changed(visible_in_tree);
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was_visible_in_tree = visible_in_tree;
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} break;
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}
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}
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void CanvasModulate::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_color", "color"), &CanvasModulate::set_color);
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ClassDB::bind_method(D_METHOD("get_color"), &CanvasModulate::get_color);
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ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), "set_color", "get_color");
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}
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void CanvasModulate::set_color(const Color &p_color) {
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color = p_color;
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if (is_active) {
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RS::get_singleton()->canvas_set_modulate(get_canvas(), color);
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}
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}
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Color CanvasModulate::get_color() const {
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return color;
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}
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PackedStringArray CanvasModulate::get_configuration_warnings() const {
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PackedStringArray warnings = Node::get_configuration_warnings();
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if (is_in_canvas && is_visible_in_tree()) {
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List<Node *> nodes;
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get_tree()->get_nodes_in_group("_canvas_modulate_" + itos(get_canvas().get_id()), &nodes);
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if (nodes.size() > 1) {
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warnings.push_back(RTR("Only one visible CanvasModulate is allowed per canvas.\nWhen there are more than one, only one of them will be active. Which one is undefined."));
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}
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}
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return warnings;
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}
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CanvasModulate::CanvasModulate() {
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}
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CanvasModulate::~CanvasModulate() {
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}
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