mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 00:47:26 +00:00
5e2607aedb
A scene is a single screen within an expo. It is possible to move between scenes but only one can be displayed at once. Add a basic implementation. Signed-off-by: Simon Glass <sjg@chromium.org>
123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
/* 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
|
|
* @return: 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
|
|
*/
|
|
void *scene_obj_find(struct scene *scn, uint id, enum scene_obj_t type);
|
|
|
|
/**
|
|
* 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_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
|
|
*/
|
|
int scene_menu_arrange(struct scene *scn, struct scene_obj_menu *menu);
|
|
|
|
/**
|
|
* 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
|
|
* @return 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
|
|
* @return 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);
|
|
|
|
#endif /* __SCENE_INTERNAL_H */
|