expo: Make bounding-box calculation more flexible

In some cases it is useful to obtain more than just two bounding boxes
from a menu, e.g. to line up all descriptions vertically.

Use an array to obtain bounding-box information and calculate it
separately for each item.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2025-05-02 08:46:34 -06:00
parent 8d4237592a
commit 6e169237d2
3 changed files with 120 additions and 54 deletions

View File

@@ -325,9 +325,9 @@ int scene_obj_get_hw(struct scene *scn, uint id, int *widthp)
*/
static void scene_render_background(struct scene_obj *obj, bool box_only)
{
struct vidconsole_bbox bbox[SCENEBB_count], *sel;
struct expo *exp = obj->scene->expo;
const struct expo_theme *theme = &exp->theme;
struct vidconsole_bbox bbox, label_bbox;
struct udevice *dev = exp->display;
struct video_priv *vid_priv;
struct udevice *cons = exp->cons;
@@ -346,17 +346,20 @@ static void scene_render_background(struct scene_obj *obj, bool box_only)
}
/* see if this object wants to render a background */
if (scene_obj_calc_bbox(obj, &bbox, &label_bbox))
if (scene_obj_calc_bbox(obj, bbox))
return;
sel = &bbox[SCENEBB_label];
if (!sel->valid)
return;
vidconsole_push_colour(cons, fore, back, &old);
video_fill_part(dev, label_bbox.x0 - inset, label_bbox.y0 - inset,
label_bbox.x1 + inset, label_bbox.y1 + inset,
video_fill_part(dev, sel->x0 - inset, sel->y0 - inset,
sel->x1 + inset, sel->y1 + inset,
vid_priv->colour_fg);
vidconsole_pop_colour(cons, &old);
if (box_only) {
video_fill_part(dev, label_bbox.x0, label_bbox.y0,
label_bbox.x1, label_bbox.y1,
video_fill_part(dev, sel->x0, sel->y0, sel->x1, sel->y1,
vid_priv->colour_bg);
}
}
@@ -729,8 +732,7 @@ int scene_send_key(struct scene *scn, int key, struct expo_action *event)
return 0;
}
int scene_obj_calc_bbox(struct scene_obj *obj, struct vidconsole_bbox *bbox,
struct vidconsole_bbox *label_bbox)
int scene_obj_calc_bbox(struct scene_obj *obj, struct vidconsole_bbox bbox[])
{
switch (obj->type) {
case SCENEOBJT_NONE:
@@ -740,14 +742,15 @@ int scene_obj_calc_bbox(struct scene_obj *obj, struct vidconsole_bbox *bbox,
case SCENEOBJT_MENU: {
struct scene_obj_menu *menu = (struct scene_obj_menu *)obj;
scene_menu_calc_bbox(menu, bbox, label_bbox);
scene_menu_calc_bbox(menu, bbox);
break;
}
case SCENEOBJT_TEXTLINE: {
struct scene_obj_textline *tline;
tline = (struct scene_obj_textline *)obj;
scene_textline_calc_bbox(tline, bbox, label_bbox);
scene_textline_calc_bbox(tline, &bbox[SCENEBB_all],
&bbox[SCENEBB_label]);
break;
}
}
@@ -915,28 +918,42 @@ int scene_iter_objs(struct scene *scn, expo_scene_obj_iterator iter,
return 0;
}
int scene_bbox_join(const struct vidconsole_bbox *src, int inset,
struct vidconsole_bbox *dst)
{
if (dst->valid) {
dst->x0 = min(dst->x0, src->x0 - inset);
dst->y0 = min(dst->y0, src->y0);
dst->x1 = max(dst->x1, src->x1 + inset);
dst->y1 = max(dst->y1, src->y1);
} else {
dst->x0 = src->x0 - inset;
dst->y0 = src->y0;
dst->x1 = src->x1 + inset;
dst->y1 = src->y1;
dst->valid = true;
}
return 0;
}
int scene_bbox_union(struct scene *scn, uint id, int inset,
struct vidconsole_bbox *bbox)
{
struct scene_obj *obj;
struct vidconsole_bbox local;
if (!id)
return 0;
obj = scene_obj_find(scn, id, SCENEOBJT_NONE);
if (!obj)
return log_msg_ret("obj", -ENOENT);
if (bbox->valid) {
bbox->x0 = min(bbox->x0, obj->bbox.x0 - inset);
bbox->y0 = min(bbox->y0, obj->bbox.y0);
bbox->x1 = max(bbox->x1, obj->bbox.x1 + inset);
bbox->y1 = max(bbox->y1, obj->bbox.y1);
} else {
bbox->x0 = obj->bbox.x0 - inset;
bbox->y0 = obj->bbox.y0;
bbox->x1 = obj->bbox.x1 + inset;
bbox->y1 = obj->bbox.y1;
bbox->valid = true;
}
local.x0 = obj->bbox.x0;
local.y0 = obj->bbox.y0;
local.x1 = obj->bbox.x1;
local.y1 = obj->bbox.y1;
local.valid = true;
scene_bbox_join(&local, inset, bbox);
return 0;
}