1/**************************************************************************/
2/* center_container.cpp */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
14/* without limitation the rights to use, copy, modify, merge, publish, */
15/* distribute, sublicense, and/or sell copies of the Software, and to */
16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
18/* */
19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
24/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
25/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
26/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
27/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#include "center_container.h"
32
33Size2 CenterContainer::get_minimum_size() const {
34 if (use_top_left) {
35 return Size2();
36 }
37 Size2 ms;
38 for (int i = 0; i < get_child_count(); i++) {
39 Control *c = Object::cast_to<Control>(get_child(i));
40 if (!c) {
41 continue;
42 }
43 if (c->is_set_as_top_level()) {
44 continue;
45 }
46 if (!c->is_visible()) {
47 continue;
48 }
49 Size2 minsize = c->get_combined_minimum_size();
50 ms.width = MAX(ms.width, minsize.width);
51 ms.height = MAX(ms.height, minsize.height);
52 }
53
54 return ms;
55}
56
57void CenterContainer::set_use_top_left(bool p_enable) {
58 if (use_top_left == p_enable) {
59 return;
60 }
61
62 use_top_left = p_enable;
63
64 update_minimum_size();
65 queue_sort();
66}
67
68bool CenterContainer::is_using_top_left() const {
69 return use_top_left;
70}
71
72Vector<int> CenterContainer::get_allowed_size_flags_horizontal() const {
73 return Vector<int>();
74}
75
76Vector<int> CenterContainer::get_allowed_size_flags_vertical() const {
77 return Vector<int>();
78}
79
80void CenterContainer::_notification(int p_what) {
81 switch (p_what) {
82 case NOTIFICATION_SORT_CHILDREN: {
83 Size2 size = get_size();
84 for (int i = 0; i < get_child_count(); i++) {
85 Control *c = Object::cast_to<Control>(get_child(i));
86 if (!c) {
87 continue;
88 }
89 if (c->is_set_as_top_level()) {
90 continue;
91 }
92
93 Size2 minsize = c->get_combined_minimum_size();
94 Point2 ofs = use_top_left ? (-minsize * 0.5).floor() : ((size - minsize) / 2.0).floor();
95 fit_child_in_rect(c, Rect2(ofs, minsize));
96 }
97 } break;
98 }
99}
100
101void CenterContainer::_bind_methods() {
102 ClassDB::bind_method(D_METHOD("set_use_top_left", "enable"), &CenterContainer::set_use_top_left);
103 ClassDB::bind_method(D_METHOD("is_using_top_left"), &CenterContainer::is_using_top_left);
104
105 ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_top_left"), "set_use_top_left", "is_using_top_left");
106}
107
108CenterContainer::CenterContainer() {}
109