1/**************************************************************************/
2/* theme_owner.h */
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#ifndef THEME_OWNER_H
32#define THEME_OWNER_H
33
34#include "core/object/object.h"
35#include "scene/resources/theme.h"
36
37class Control;
38class Node;
39class ThemeContext;
40class Window;
41
42class ThemeOwner : public Object {
43 Node *holder = nullptr;
44
45 Control *owner_control = nullptr;
46 Window *owner_window = nullptr;
47 ThemeContext *owner_context = nullptr;
48
49 void _owner_context_changed();
50 ThemeContext *_get_active_owner_context() const;
51
52 Node *_get_next_owner_node(Node *p_from_node) const;
53 Ref<Theme> _get_owner_node_theme(Node *p_owner_node) const;
54
55public:
56 // Theme owner node.
57
58 void set_owner_node(Node *p_node);
59 Node *get_owner_node() const;
60 bool has_owner_node() const;
61
62 void set_owner_context(ThemeContext *p_context, bool p_propagate = true);
63
64 // Theme propagation.
65
66 void assign_theme_on_parented(Node *p_for_node);
67 void clear_theme_on_unparented(Node *p_for_node);
68 void propagate_theme_changed(Node *p_to_node, Node *p_owner_node, bool p_notify, bool p_assign);
69
70 // Theme lookup.
71
72 void get_theme_type_dependencies(const Node *p_for_node, const StringName &p_theme_type, List<StringName> *r_list) const;
73
74 Variant get_theme_item_in_types(Theme::DataType p_data_type, const StringName &p_name, List<StringName> p_theme_types);
75 bool has_theme_item_in_types(Theme::DataType p_data_type, const StringName &p_name, List<StringName> p_theme_types);
76
77 float get_theme_default_base_scale();
78 Ref<Font> get_theme_default_font();
79 int get_theme_default_font_size();
80
81 ThemeOwner(Node *p_holder) { holder = p_holder; }
82 ~ThemeOwner() {}
83};
84
85#endif // THEME_OWNER_H
86