1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Internal header file for scenes
*
* Copyright 2022 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*/
#ifndef __SCENE_INTERNAL_H
#define __SCENE_INTERNAL_H
/**
* expo_lookup_scene_id() - Look up a scene ID
*
* @exp: Expo to use
* @id: scene ID to look up
* Returns: Scene for that ID, or NULL if none
*/
struct scene *expo_lookup_scene_id(struct expo *exp, uint scene_id);
/**
* resolve_id() - Automatically allocate an ID if needed
*
* @exp: Expo to use
* @id: ID to use, or 0 to auto-allocate one
* Returns: Either @id, or the auto-allocated ID
*/
uint resolve_id(struct expo *exp, uint id);
/**
* scene_obj_find() - Find an object in a scene
*
* Note that @type is used to restrict the search when the object type is known.
* If any type is acceptable, set @type to SCENEOBJT_NONE
*
* @scn: Scene to search
* @id: ID of object to find
* @type: Type of the object, or SCENEOBJT_NONE to match any type
* Returns: Object found, or NULL if not found
*/
void *scene_obj_find(struct scene *scn, uint id, enum scene_obj_t type);
/**
* scene_obj_find_by_name() - Find an object in a scene by name
*
* @scn: Scene to search
* @name: Name to search for
*/
void *scene_obj_find_by_name(struct scene *scn, const char *name);
/**
* scene_obj_add() - Add a new object to a scene
*
* @scn: Scene to update
* @name: Name to use (this is allocated by this call)
* @id: ID to use for the new object (0 to allocate one)
* @type: Type of object to add
* @size: Size to allocate for the object, in bytes
* @objp: Returns a pointer to the new object (must not be NULL)
* Returns: ID number for the object (generally @id), or -ve on error
*/
int scene_obj_add(struct scene *scn, const char *name, uint id,
enum scene_obj_t type, uint size, struct scene_obj **objp);
/**
* scene_obj_flag_clrset() - Adjust object flags
*
* @scn: Scene to update
* @id: ID of object to update
* @clr: Bits to clear in the object's flags
* @set: Bits to set in the object's flags
* Returns 0 if OK, -ENOENT if the object was not found
*/
int scene_obj_flag_clrset(struct scene *scn, uint id, uint clr, uint set);
/**
* scene_calc_dims() - Calculate the dimensions of the scene objects
*
* Updates the width and height of all objects based on their contents
*
* @scn: Scene to update
* @do_menus: true to calculate only menus, false to calculate everything else
* Returns 0 if OK, -ENOTSUPP if there is no graphical console
*/
int scene_calc_dims(struct scene *scn, bool do_menus);
/**
* scene_menu_arrange() - Set the position of things in the menu
*
* This updates any items associated with a menu to make sure they are
* positioned correctly relative to the menu. It also selects the first item
* if not already done
*
* @scn: Scene to update
* @menu: Menu to process
* Returns: 0 if OK, -ve on error
*/
int scene_menu_arrange(struct scene *scn, struct scene_obj_menu *menu);
/**
* scene_apply_theme() - Apply a theme to a scene
*
* @scn: Scene to update
* @theme: Theme to apply
* Returns: 0 if OK, -ve on error
*/
int scene_apply_theme(struct scene *scn, struct expo_theme *theme);
/**
* scene_menu_send_key() - Send a key to a menu for processing
*
* @scn: Scene to use
* @menu: Menu to use
* @key: Key code to send (KEY_...)
* @event: Place to put any event which is generated by the key
* Returns: 0 if OK, -ENOTTY if there is no current menu item, other -ve on other
* error
*/
int scene_menu_send_key(struct scene *scn, struct scene_obj_menu *menu, int key,
struct expo_action *event);
/**
* scene_menu_destroy() - Destroy a menu in a scene
*
* @scn: Scene to destroy
*/
void scene_menu_destroy(struct scene_obj_menu *menu);
/**
* scene_menu_display() - Display a menu as text
*
* @menu: Menu to display
* Returns: 0 if OK, -ENOENT if @id is invalid
*/
int scene_menu_display(struct scene_obj_menu *menu);
/**
* scene_destroy() - Destroy a scene and all its memory
*
* @scn: Scene to destroy
*/
void scene_destroy(struct scene *scn);
/**
* scene_render() - Render a scene
*
* This is called from expo_render()
*
* @scn: Scene to render
* Returns: 0 if OK, -ve on error
*/
int scene_render(struct scene *scn);
/**
* scene_send_key() - set a keypress to a scene
*
* @scn: Scene to receive the key
* @key: Key to send (KEYCODE_UP)
* @event: Returns resulting event from this keypress
* Returns: 0 if OK, -ve on error
*/
int scene_send_key(struct scene *scn, int key, struct expo_action *event);
/**
* scene_menu_render() - Render the background behind a menu
*
* @menu: Menu to render
*/
void scene_menu_render(struct scene_obj_menu *menu);
/**
* scene_render_deps() - Render an object and its dependencies
*
* @scn: Scene to render
* @id: Object ID to render (or 0 for none)
* Returns: 0 if OK, -ve on error
*/
int scene_render_deps(struct scene *scn, uint id);
/**
* scene_menu_render_deps() - Render a menu and its dependencies
*
* Renders the menu and all of its attached objects
*
* @scn: Scene to render
* @menu: Menu render
* Returns: 0 if OK, -ve on error
*/
int scene_menu_render_deps(struct scene *scn, struct scene_obj_menu *menu);
/**
* scene_menu_calc_dims() - Calculate the dimensions of a menu
*
* Updates the width and height of the menu based on its contents
*
* @menu: Menu to update
* Returns 0 if OK, -ENOTSUPP if there is no graphical console
*/
int scene_menu_calc_dims(struct scene_obj_menu *menu);
#endif /* __SCENE_INTERNAL_H */
|
