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expo: Begin implementation of a text editor

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It is useful to be able to edit text, e.g. to allow the user to edit the
environment or the command-line arguments for the OS.

Add the beginnings of an implementation. Future work is needed to finish
this: keypress handling and scrolling. For now it just displays the
text.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2025-05-30 09:49:32 +01:00
parent 09f6f915fe
commit e005f18b93
8 changed files with 164 additions and 4 deletions
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test/boot/expo.c
+15 -1
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@@ -30,6 +30,7 @@ enum {
OBJ_MENU_TITLE,
OBJ_BOX,
OBJ_BOX2,
OBJ_TEXTED,
/* strings */
STR_SCENE_TITLE,
@@ -37,6 +38,7 @@ enum {
STR_TEXT,
STR_TEXT2,
STR_TEXT3,
STR_TEXTED,
STR_MENU_TITLE,
STR_POINTER_TEXT,
@@ -462,6 +464,7 @@ static int expo_render_image(struct unit_test_state *uts)
{
struct scene_obj_menu *menu;
struct scene *scn, *scn2;
struct abuf orig, *text;
struct expo_action act;
struct scene_obj *obj;
struct udevice *dev;
@@ -556,6 +559,14 @@ static int expo_render_image(struct unit_test_state *uts)
ut_assert(id > 0);
ut_assertok(scene_obj_set_bbox(scn, OBJ_BOX, 500, 200, 1000, 350));
id = scene_texted(scn, "editor", OBJ_TEXTED, STR_TEXTED, NULL);
ut_assert(id > 0);
ut_assertok(scene_obj_set_bbox(scn, OBJ_TEXTED, 100, 200, 400, 650));
ut_assertok(expo_edit_str(exp, STR_TEXTED, &orig, &text));
abuf_printf(text, "This\nis the initial contents of the text editor "
"but it is quite likely that more will be added later");
scn2 = expo_lookup_scene_id(exp, SCENE1);
ut_asserteq_ptr(scn, scn2);
scn2 = expo_lookup_scene_id(exp, SCENE2);
@@ -666,9 +677,12 @@ 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(16304, video_compress_fb(uts, dev, false));
ut_asserteq(19673, video_compress_fb(uts, dev, false));
ut_assertok(video_check_copy_fb(uts, dev));
/* hide the text editor since the following tets don't need it */
scene_obj_set_hide(scn, OBJ_TEXTED, true);
/* do some alignment checks */
ut_assertok(scene_obj_set_halign(scn, OBJ_TEXT3, SCENEOA_CENTRE));
ut_assertok(expo_render(exp));