u-boot/boot/scene_menu.c
Simon Glass 94598d5b0a expo: Allow rendering the background of any object
So far only menus have a background. When other object types are
rendered, they may have a background too. Make this code more generic
so it will be usable by new object types.

Signed-off-by: Simon Glass <sjg@chromium.org>
2023-10-11 15:43:55 -04:00

534 lines
12 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Implementation of a menu in a scene
*
* Copyright 2022 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*/
#define LOG_CATEGORY LOGC_EXPO
#include <common.h>
#include <dm.h>
#include <expo.h>
#include <malloc.h>
#include <mapmem.h>
#include <menu.h>
#include <video.h>
#include <video_console.h>
#include <linux/input.h>
#include "scene_internal.h"
static void scene_menuitem_destroy(struct scene_menitem *item)
{
free(item->name);
free(item);
}
void scene_menu_destroy(struct scene_obj_menu *menu)
{
struct scene_menitem *item, *next;
list_for_each_entry_safe(item, next, &menu->item_head, sibling)
scene_menuitem_destroy(item);
}
struct scene_menitem *scene_menuitem_find(const struct scene_obj_menu *menu,
int id)
{
struct scene_menitem *item;
list_for_each_entry(item, &menu->item_head, sibling) {
if (item->id == id)
return item;
}
return NULL;
}
struct scene_menitem *scene_menuitem_find_seq(const struct scene_obj_menu *menu,
uint seq)
{
struct scene_menitem *item;
uint i;
i = 0;
list_for_each_entry(item, &menu->item_head, sibling) {
if (i == seq)
return item;
i++;
}
return NULL;
}
/**
* update_pointers() - Update the pointer object and handle highlights
*
* @menu: Menu to update
* @id: ID of menu item to select/deselect
* @point: true if @id is being selected, false if it is being deselected
*/
static int update_pointers(struct scene_obj_menu *menu, uint id, bool point)
{
struct scene *scn = menu->obj.scene;
const bool stack = scn->expo->popup;
const struct scene_menitem *item;
int ret;
item = scene_menuitem_find(menu, id);
if (!item)
return log_msg_ret("itm", -ENOENT);
/* adjust the pointer object to point to the selected item */
if (menu->pointer_id && item && point) {
struct scene_obj *label;
label = scene_obj_find(scn, item->label_id, SCENEOBJT_NONE);
ret = scene_obj_set_pos(scn, menu->pointer_id,
menu->obj.dim.x + 200, label->dim.y);
if (ret < 0)
return log_msg_ret("ptr", ret);
}
if (stack) {
point &= scn->highlight_id == menu->obj.id;
scene_obj_flag_clrset(scn, item->label_id, SCENEOF_POINT,
point ? SCENEOF_POINT : 0);
}
return 0;
}
/**
* menu_point_to_item() - Point to a particular menu item
*
* Sets the currently pointed-to / highlighted menu item
*/
static void menu_point_to_item(struct scene_obj_menu *menu, uint item_id)
{
if (menu->cur_item_id)
update_pointers(menu, menu->cur_item_id, false);
menu->cur_item_id = item_id;
update_pointers(menu, item_id, true);
}
void scene_menu_calc_bbox(struct scene_obj_menu *menu,
struct vidconsole_bbox *bbox,
struct vidconsole_bbox *label_bbox)
{
const struct expo_theme *theme = &menu->obj.scene->expo->theme;
const struct scene_menitem *item;
bbox->valid = false;
scene_bbox_union(menu->obj.scene, menu->title_id, 0, bbox);
label_bbox->valid = false;
list_for_each_entry(item, &menu->item_head, sibling) {
scene_bbox_union(menu->obj.scene, item->label_id,
theme->menu_inset, bbox);
scene_bbox_union(menu->obj.scene, item->key_id, 0, bbox);
scene_bbox_union(menu->obj.scene, item->desc_id, 0, bbox);
scene_bbox_union(menu->obj.scene, item->preview_id, 0, bbox);
/* Get the bounding box of all labels */
scene_bbox_union(menu->obj.scene, item->label_id,
theme->menu_inset, label_bbox);
}
/*
* subtract the final menuitem's gap to keep the insert the same top
* and bottom
*/
label_bbox->y1 -= theme->menuitem_gap_y;
}
int scene_menu_calc_dims(struct scene_obj_menu *menu)
{
struct vidconsole_bbox bbox, label_bbox;
const struct scene_menitem *item;
scene_menu_calc_bbox(menu, &bbox, &label_bbox);
/* Make all labels the same size */
if (label_bbox.valid) {
list_for_each_entry(item, &menu->item_head, sibling) {
scene_obj_set_size(menu->obj.scene, item->label_id,
label_bbox.x1 - label_bbox.x0,
label_bbox.y1 - label_bbox.y0);
}
}
if (bbox.valid) {
menu->obj.dim.w = bbox.x1 - bbox.x0;
menu->obj.dim.h = bbox.y1 - bbox.y0;
}
return 0;
}
int scene_menu_arrange(struct scene *scn, struct scene_obj_menu *menu)
{
const bool open = menu->obj.flags & SCENEOF_OPEN;
struct expo *exp = scn->expo;
const bool stack = exp->popup;
const struct expo_theme *theme = &exp->theme;
struct scene_menitem *item;
uint sel_id;
int x, y;
int ret;
x = menu->obj.dim.x;
y = menu->obj.dim.y;
if (menu->title_id) {
ret = scene_obj_set_pos(scn, menu->title_id, menu->obj.dim.x, y);
if (ret < 0)
return log_msg_ret("tit", ret);
ret = scene_obj_get_hw(scn, menu->title_id, NULL);
if (ret < 0)
return log_msg_ret("hei", ret);
if (stack)
x += 200;
else
y += ret * 2;
}
/*
* Currently everything is hard-coded to particular columns so this
* won't work on small displays and looks strange if the font size is
* small. This can be updated once text measuring is supported in
* vidconsole
*/
sel_id = menu->cur_item_id;
list_for_each_entry(item, &menu->item_head, sibling) {
bool selected;
int height;
ret = scene_obj_get_hw(scn, item->label_id, NULL);
if (ret < 0)
return log_msg_ret("get", ret);
height = ret;
if (item->flags & SCENEMIF_GAP_BEFORE)
y += height;
/* select an item if not done already */
if (!sel_id)
sel_id = item->id;
selected = sel_id == item->id;
/*
* Put the label on the left, then leave a space for the
* pointer, then the key and the description
*/
ret = scene_obj_set_pos(scn, item->label_id,
x + theme->menu_inset, y);
if (ret < 0)
return log_msg_ret("nam", ret);
scene_obj_set_hide(scn, item->label_id,
stack && !open && !selected);
if (item->key_id) {
ret = scene_obj_set_pos(scn, item->key_id, x + 230, y);
if (ret < 0)
return log_msg_ret("key", ret);
}
if (item->desc_id) {
ret = scene_obj_set_pos(scn, item->desc_id, x + 280, y);
if (ret < 0)
return log_msg_ret("des", ret);
}
if (item->preview_id) {
bool hide;
/*
* put all previews on top of each other, on the right
* size of the display
*/
ret = scene_obj_set_pos(scn, item->preview_id, -4, y);
if (ret < 0)
return log_msg_ret("prev", ret);
hide = menu->cur_item_id != item->id;
ret = scene_obj_set_hide(scn, item->preview_id, hide);
if (ret < 0)
return log_msg_ret("hid", ret);
}
if (!stack || open)
y += height + theme->menuitem_gap_y;
}
if (sel_id)
menu_point_to_item(menu, sel_id);
return 0;
}
int scene_menu(struct scene *scn, const char *name, uint id,
struct scene_obj_menu **menup)
{
struct scene_obj_menu *menu;
int ret;
ret = scene_obj_add(scn, name, id, SCENEOBJT_MENU,
sizeof(struct scene_obj_menu),
(struct scene_obj **)&menu);
if (ret < 0)
return log_msg_ret("obj", -ENOMEM);
if (menup)
*menup = menu;
INIT_LIST_HEAD(&menu->item_head);
return menu->obj.id;
}
static struct scene_menitem *scene_menu_find_key(struct scene *scn,
struct scene_obj_menu *menu,
int key)
{
struct scene_menitem *item;
list_for_each_entry(item, &menu->item_head, sibling) {
if (item->key_id) {
struct scene_obj_txt *txt;
const char *str;
txt = scene_obj_find(scn, item->key_id, SCENEOBJT_TEXT);
if (txt) {
str = expo_get_str(scn->expo, txt->str_id);
if (str && *str == key)
return item;
}
}
}
return NULL;
}
int scene_menu_send_key(struct scene *scn, struct scene_obj_menu *menu, int key,
struct expo_action *event)
{
const bool open = menu->obj.flags & SCENEOF_OPEN;
struct scene_menitem *item, *cur, *key_item;
cur = NULL;
key_item = NULL;
if (!list_empty(&menu->item_head)) {
list_for_each_entry(item, &menu->item_head, sibling) {
/* select an item if not done already */
if (menu->cur_item_id == item->id) {
cur = item;
break;
}
}
}
if (!cur)
return -ENOTTY;
switch (key) {
case BKEY_UP:
if (item != list_first_entry(&menu->item_head,
struct scene_menitem, sibling)) {
item = list_entry(item->sibling.prev,
struct scene_menitem, sibling);
event->type = EXPOACT_POINT_ITEM;
event->select.id = item->id;
log_debug("up to item %d\n", event->select.id);
}
break;
case BKEY_DOWN:
if (!list_is_last(&item->sibling, &menu->item_head)) {
item = list_entry(item->sibling.next,
struct scene_menitem, sibling);
event->type = EXPOACT_POINT_ITEM;
event->select.id = item->id;
log_debug("down to item %d\n", event->select.id);
}
break;
case BKEY_SELECT:
event->type = EXPOACT_SELECT;
event->select.id = item->id;
log_debug("select item %d\n", event->select.id);
break;
case BKEY_QUIT:
if (scn->expo->popup && open) {
event->type = EXPOACT_CLOSE;
event->select.id = menu->obj.id;
} else {
event->type = EXPOACT_QUIT;
log_debug("menu quit\n");
}
break;
case '0'...'9':
key_item = scene_menu_find_key(scn, menu, key);
if (key_item) {
event->type = EXPOACT_SELECT;
event->select.id = key_item->id;
}
break;
}
menu_point_to_item(menu, item->id);
return 0;
}
int scene_menuitem(struct scene *scn, uint menu_id, const char *name, uint id,
uint key_id, uint label_id, uint desc_id, uint preview_id,
uint flags, struct scene_menitem **itemp)
{
struct scene_obj_menu *menu;
struct scene_menitem *item;
menu = scene_obj_find(scn, menu_id, SCENEOBJT_MENU);
if (!menu)
return log_msg_ret("find", -ENOENT);
/* Check that the text ID is valid */
if (!scene_obj_find(scn, label_id, SCENEOBJT_TEXT))
return log_msg_ret("txt", -EINVAL);
item = calloc(1, sizeof(struct scene_menitem));
if (!item)
return log_msg_ret("item", -ENOMEM);
item->name = strdup(name);
if (!item->name) {
free(item);
return log_msg_ret("name", -ENOMEM);
}
item->id = resolve_id(scn->expo, id);
item->key_id = key_id;
item->label_id = label_id;
item->desc_id = desc_id;
item->preview_id = preview_id;
item->flags = flags;
list_add_tail(&item->sibling, &menu->item_head);
if (itemp)
*itemp = item;
return item->id;
}
int scene_menu_set_title(struct scene *scn, uint id, uint title_id)
{
struct scene_obj_menu *menu;
struct scene_obj_txt *txt;
menu = scene_obj_find(scn, id, SCENEOBJT_MENU);
if (!menu)
return log_msg_ret("menu", -ENOENT);
/* Check that the ID is valid */
if (title_id) {
txt = scene_obj_find(scn, title_id, SCENEOBJT_TEXT);
if (!txt)
return log_msg_ret("txt", -EINVAL);
}
menu->title_id = title_id;
return 0;
}
int scene_menu_set_pointer(struct scene *scn, uint id, uint pointer_id)
{
struct scene_obj_menu *menu;
struct scene_obj *obj;
menu = scene_obj_find(scn, id, SCENEOBJT_MENU);
if (!menu)
return log_msg_ret("menu", -ENOENT);
/* Check that the ID is valid */
if (pointer_id) {
obj = scene_obj_find(scn, pointer_id, SCENEOBJT_NONE);
if (!obj)
return log_msg_ret("obj", -EINVAL);
}
menu->pointer_id = pointer_id;
return 0;
}
int scene_menu_display(struct scene_obj_menu *menu)
{
struct scene *scn = menu->obj.scene;
struct scene_obj_txt *pointer;
struct expo *exp = scn->expo;
struct scene_menitem *item;
const char *pstr;
printf("U-Boot : Boot Menu\n\n");
if (menu->title_id) {
struct scene_obj_txt *txt;
const char *str;
txt = scene_obj_find(scn, menu->title_id, SCENEOBJT_TEXT);
if (!txt)
return log_msg_ret("txt", -EINVAL);
str = expo_get_str(exp, txt->str_id);
printf("%s\n\n", str);
}
if (list_empty(&menu->item_head))
return 0;
pointer = scene_obj_find(scn, menu->pointer_id, SCENEOBJT_TEXT);
pstr = expo_get_str(scn->expo, pointer->str_id);
list_for_each_entry(item, &menu->item_head, sibling) {
struct scene_obj_txt *key = NULL, *label = NULL;
struct scene_obj_txt *desc = NULL;
const char *kstr = NULL, *lstr = NULL, *dstr = NULL;
key = scene_obj_find(scn, item->key_id, SCENEOBJT_TEXT);
if (key)
kstr = expo_get_str(exp, key->str_id);
label = scene_obj_find(scn, item->label_id, SCENEOBJT_TEXT);
if (label)
lstr = expo_get_str(exp, label->str_id);
desc = scene_obj_find(scn, item->desc_id, SCENEOBJT_TEXT);
if (desc)
dstr = expo_get_str(exp, desc->str_id);
printf("%3s %3s %-10s %s\n",
pointer && menu->cur_item_id == item->id ? pstr : "",
kstr, lstr, dstr);
}
return -ENOTSUPP;
}
int scene_menu_render_deps(struct scene *scn, struct scene_obj_menu *menu)
{
struct scene_menitem *item;
scene_render_deps(scn, menu->title_id);
scene_render_deps(scn, menu->cur_item_id);
scene_render_deps(scn, menu->pointer_id);
list_for_each_entry(item, &menu->item_head, sibling) {
scene_render_deps(scn, item->key_id);
scene_render_deps(scn, item->label_id);
scene_render_deps(scn, item->desc_id);
}
return 0;
}