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expo: Implement a box

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It is useful to be able to draw a box around elements in the menu. Add
support for an unfilled box with a selectable thickness.

Note that there is no support for selecting the colour for any expo
objects yet.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2025-05-02 08:46:44 -06:00
parent d25c62fd58
commit 0635004e22
5 changed files with 85 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
boot/cedit.c
View File

@@ -81,6 +81,7 @@ int cedit_arange(struct expo *exp, struct video_priv *vpriv, uint scene_id)
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_MENU:
scene_obj_set_pos(scn, obj->id, 50, y);
@@ -381,6 +382,7 @@ static int h_write_settings(struct scene_obj *obj, void *vpriv)
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_TEXTLINE: {
const struct scene_obj_textline *tline;
@@ -480,6 +482,7 @@ static int h_read_settings(struct scene_obj *obj, void *vpriv)
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_TEXTLINE: {
const struct scene_obj_textline *tline;
@@ -551,6 +554,7 @@ static int h_write_settings_env(struct scene_obj *obj, void *vpriv)
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_MENU:
menu = (struct scene_obj_menu *)obj;
@@ -634,6 +638,7 @@ static int h_read_settings_env(struct scene_obj *obj, void *vpriv)
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_MENU:
menu = (struct scene_obj_menu *)obj;

40
boot/scene.c
View File

@@ -211,6 +211,26 @@ int scene_txt_str(struct scene *scn, const char *name, uint id, uint str_id,
return txt->obj.id;
}
int scene_box(struct scene *scn, const char *name, uint id, uint width,
struct scene_obj_box **boxp)
{
struct scene_obj_box *box;
int ret;
ret = scene_obj_add(scn, name, id, SCENEOBJT_BOX,
sizeof(struct scene_obj_box),
(struct scene_obj **)&box);
if (ret < 0)
return log_msg_ret("obj", ret);
box->width = width;
if (boxp)
*boxp = box;
return box->obj.id;
}
int scene_txt_set_font(struct scene *scn, uint id, const char *font_name,
uint font_size)
{
@@ -323,6 +343,7 @@ int scene_obj_get_hw(struct scene *scn, uint id, int *widthp)
case SCENEOBJT_NONE:
case SCENEOBJT_MENU:
case SCENEOBJT_TEXTLINE:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_IMAGE: {
struct scene_obj_img *img = (struct scene_obj_img *)obj;
@@ -490,10 +511,12 @@ static int scene_obj_render(struct scene_obj *obj, bool text_mode)
const struct expo_theme *theme = &exp->theme;
struct udevice *dev = exp->display;
struct udevice *cons = text_mode ? NULL : exp->cons;
struct video_priv *vid_priv;
int x, y, ret;
x = obj->bbox.x0;
y = obj->bbox.y0;
x = obj->bbox.x0;
vid_priv = dev_get_uclass_priv(dev);
switch (obj->type) {
case SCENEOBJT_NONE:
@@ -544,6 +567,13 @@ static int scene_obj_render(struct scene_obj *obj, bool text_mode)
if (obj->flags & SCENEOF_OPEN)
scene_render_background(obj, true);
break;
case SCENEOBJT_BOX: {
struct scene_obj_box *box = (struct scene_obj_box *)obj;
video_draw_box(dev, obj->bbox.x0, obj->bbox.y0, obj->bbox.x1,
obj->bbox.y1, box->width, vid_priv->colour_fg);
break;
}
}
return 0;
@@ -562,6 +592,7 @@ int scene_calc_arrange(struct scene *scn, struct expo_arrange_info *arr)
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_MENU: {
struct scene_obj_menu *menu;
@@ -607,6 +638,7 @@ int scene_arrange(struct scene *scn)
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_MENU: {
struct scene_obj_menu *menu;
@@ -652,6 +684,7 @@ int scene_render_deps(struct scene *scn, uint id)
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_MENU:
scene_menu_render_deps(scn,
@@ -771,6 +804,7 @@ int scene_send_key(struct scene *scn, int key, struct expo_action *event)
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_MENU: {
struct scene_obj_menu *menu;
@@ -815,6 +849,7 @@ int scene_obj_calc_bbox(struct scene_obj *obj, struct vidconsole_bbox bbox[])
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
return -ENOSYS;
case SCENEOBJT_MENU: {
struct scene_obj_menu *menu = (struct scene_obj_menu *)obj;
@@ -844,6 +879,7 @@ int scene_calc_dims(struct scene *scn, bool do_menus)
switch (obj->type) {
case SCENEOBJT_NONE:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
case SCENEOBJT_IMAGE: {
int width;
@@ -902,6 +938,7 @@ int scene_apply_theme(struct scene *scn, struct expo_theme *theme)
case SCENEOBJT_NONE:
case SCENEOBJT_IMAGE:
case SCENEOBJT_MENU:
case SCENEOBJT_BOX:
case SCENEOBJT_TEXTLINE:
break;
case SCENEOBJT_TEXT:
@@ -944,6 +981,7 @@ static int scene_obj_open(struct scene *scn, struct scene_obj *obj)
case SCENEOBJT_IMAGE:
case SCENEOBJT_MENU:
case SCENEOBJT_TEXT:
case SCENEOBJT_BOX:
break;
case SCENEOBJT_TEXTLINE:
ret = scene_textline_open(scn,

2
doc/develop/expo.rst
View File

@@ -65,6 +65,8 @@ item is highlighted.
A `textline object` contains a label and an editable string.
A `box object` is a rectangle with a given line width. It is not filled.
All components have a name. This is mostly for debugging, so it is easy to see
what object is referred to, although the name is also used for saving values.
Of course the ID numbers can help as well, but they are less easy to

28
include/expo.h
View File

@@ -179,6 +179,7 @@ struct scene {
*
* @SCENEOBJT_NONE: Used to indicate that the type does not matter
* @SCENEOBJT_IMAGE: Image data to render
* @SCENEOBJT_BOX: Rectangular box
* @SCENEOBJT_TEXT: Text line to render
* @SCENEOBJT_MENU: Menu containing items the user can select
* @SCENEOBJT_TEXTLINE: Line of text the user can edit
@@ -187,6 +188,7 @@ enum scene_obj_t {
SCENEOBJT_NONE = 0,
SCENEOBJT_IMAGE,
SCENEOBJT_TEXT,
SCENEOBJT_BOX,
/* types from here on can be highlighted */
SCENEOBJT_MENU,
@@ -406,6 +408,19 @@ struct scene_obj_textline {
uint pos;
};
/**
* struct scene_obj_box - information about a box in a scene
*
* A box surrounds a part of the screen with a border
*
* @obj: Basic object information
* @width: Line-width in pixels
*/
struct scene_obj_box {
struct scene_obj obj;
uint width;
};
/**
* struct expo_arrange_info - Information used when arranging a scene
*
@@ -670,6 +685,19 @@ int scene_menu(struct scene *scn, const char *name, uint id,
int scene_textline(struct scene *scn, const char *name, uint id, uint max_chars,
struct scene_obj_textline **tlinep);
/**
* scene_box() - create a box
*
* @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)
* @width: Line-width in pixels
* @boxp: If non-NULL, returns the new object
* Returns: ID number for the object (typically @id), or -ve on error
*/
int scene_box(struct scene *scn, const char *name, uint id, uint width,
struct scene_obj_box **boxp);
/**
* scene_txt_set_font() - Set the font for an object
*

13
test/boot/expo.c
View File

@@ -28,6 +28,8 @@ enum {
OBJ_TEXT3,
OBJ_MENU,
OBJ_MENU_TITLE,
OBJ_BOX,
OBJ_BOX2,
/* strings */
STR_SCENE_TITLE,
@@ -545,6 +547,14 @@ static int expo_render_image(struct unit_test_state *uts)
ut_assertok(scene_obj_set_pos(scn, OBJ_MENU, 50, 400));
id = scene_box(scn, "box", OBJ_BOX, 3, NULL);
ut_assert(id > 0);
ut_assertok(scene_obj_set_bbox(scn, OBJ_BOX, 40, 390, 1000, 510));
id = scene_box(scn, "box2", OBJ_BOX2, 1, NULL);
ut_assert(id > 0);
ut_assertok(scene_obj_set_bbox(scn, OBJ_BOX, 500, 200, 1000, 350));
scn2 = expo_lookup_scene_id(exp, SCENE1);
ut_asserteq_ptr(scn, scn2);
scn2 = expo_lookup_scene_id(exp, SCENE2);
@@ -655,8 +665,7 @@ static int expo_render_image(struct unit_test_state *uts)
ut_asserteq(ITEM2, scene_menu_get_cur_item(scn, OBJ_MENU));
ut_assertok(scene_arrange(scn));
ut_assertok(expo_render(exp));
ut_asserteq(14848, video_compress_fb(uts, dev, false));
ut_asserteq(14883, video_compress_fb(uts, dev, false));
ut_assertok(video_check_copy_fb(uts, dev));
/* make sure only the preview for the second item is shown */