From 4db7519032f94bc769a7a32421b26b2ec58cbbe5 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 1 Oct 2023 19:13:32 -0600 Subject: expo: Add basic support for textline objects A textline is a line of text which can be edited by the user. It has a maximum length (in chracters) but otherwise there are no restrictions. Signed-off-by: Simon Glass --- boot/scene_textline.c | 234 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 234 insertions(+) create mode 100644 boot/scene_textline.c (limited to 'boot/scene_textline.c') diff --git a/boot/scene_textline.c b/boot/scene_textline.c new file mode 100644 index 00000000000..2caa81ee158 --- /dev/null +++ b/boot/scene_textline.c @@ -0,0 +1,234 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Implementation of a menu in a scene + * + * Copyright 2023 Google LLC + * Written by Simon Glass + */ + +#define LOG_CATEGORY LOGC_EXPO + +#include +#include +#include +#include +#include "scene_internal.h" + +int scene_textline(struct scene *scn, const char *name, uint id, uint max_chars, + struct scene_obj_textline **tlinep) +{ + struct scene_obj_textline *tline; + char *buf; + int ret; + + if (max_chars >= EXPO_MAX_CHARS) + return log_msg_ret("chr", -E2BIG); + + ret = scene_obj_add(scn, name, id, SCENEOBJT_TEXTLINE, + sizeof(struct scene_obj_textline), + (struct scene_obj **)&tline); + if (ret < 0) + return log_msg_ret("obj", -ENOMEM); + abuf_init(&tline->buf); + if (!abuf_realloc(&tline->buf, max_chars + 1)) + return log_msg_ret("buf", -ENOMEM); + buf = abuf_data(&tline->buf); + *buf = '\0'; + tline->pos = max_chars; + tline->max_chars = max_chars; + + if (tlinep) + *tlinep = tline; + + return tline->obj.id; +} + +void scene_textline_calc_bbox(struct scene_obj_textline *tline, + struct vidconsole_bbox *bbox, + struct vidconsole_bbox *edit_bbox) +{ + const struct expo_theme *theme = &tline->obj.scene->expo->theme; + + bbox->valid = false; + scene_bbox_union(tline->obj.scene, tline->label_id, 0, bbox); + scene_bbox_union(tline->obj.scene, tline->edit_id, 0, bbox); + + edit_bbox->valid = false; + scene_bbox_union(tline->obj.scene, tline->edit_id, theme->menu_inset, + edit_bbox); +} + +int scene_textline_calc_dims(struct scene_obj_textline *tline) +{ + struct scene *scn = tline->obj.scene; + struct vidconsole_bbox bbox; + struct scene_obj_txt *txt; + int ret; + + txt = scene_obj_find(scn, tline->edit_id, SCENEOBJT_NONE); + if (!txt) + return log_msg_ret("dim", -ENOENT); + + ret = vidconsole_nominal(scn->expo->cons, txt->font_name, + txt->font_size, tline->max_chars, &bbox); + if (ret) + return log_msg_ret("nom", ret); + + if (bbox.valid) { + tline->obj.dim.w = bbox.x1 - bbox.x0; + tline->obj.dim.h = bbox.y1 - bbox.y0; + + scene_obj_set_size(scn, tline->edit_id, tline->obj.dim.w, + tline->obj.dim.h); + } + + return 0; +} + +int scene_textline_arrange(struct scene *scn, struct scene_obj_textline *tline) +{ + const bool open = tline->obj.flags & SCENEOF_OPEN; + bool point; + int x, y; + int ret; + + x = tline->obj.dim.x; + y = tline->obj.dim.y; + if (tline->label_id) { + ret = scene_obj_set_pos(scn, tline->label_id, tline->obj.dim.x, + y); + if (ret < 0) + return log_msg_ret("tit", ret); + + ret = scene_obj_set_pos(scn, tline->edit_id, + tline->obj.dim.x + 200, y); + if (ret < 0) + return log_msg_ret("tit", ret); + + ret = scene_obj_get_hw(scn, tline->label_id, NULL); + if (ret < 0) + return log_msg_ret("hei", ret); + + y += ret * 2; + } + + point = scn->highlight_id == tline->obj.id; + point &= !open; + scene_obj_flag_clrset(scn, tline->edit_id, SCENEOF_POINT, + point ? SCENEOF_POINT : 0); + + return 0; +} + +int scene_textline_send_key(struct scene *scn, struct scene_obj_textline *tline, + int key, struct expo_action *event) +{ + const bool open = tline->obj.flags & SCENEOF_OPEN; + + log_debug("key=%d\n", key); + switch (key) { + case BKEY_QUIT: + if (open) { + event->type = EXPOACT_CLOSE; + event->select.id = tline->obj.id; + + /* Copy the backup text from the scene buffer */ + memcpy(abuf_data(&tline->buf), abuf_data(&scn->buf), + abuf_size(&scn->buf)); + } else { + event->type = EXPOACT_QUIT; + log_debug("menu quit\n"); + } + break; + case BKEY_SELECT: + if (!open) + break; + event->type = EXPOACT_CLOSE; + event->select.id = tline->obj.id; + key = '\n'; + fallthrough; + default: { + struct udevice *cons = scn->expo->cons; + int ret; + + ret = vidconsole_entry_restore(cons, &scn->entry_save); + if (ret) + return log_msg_ret("sav", ret); + ret = cread_line_process_ch(&scn->cls, key); + ret = vidconsole_entry_save(cons, &scn->entry_save); + if (ret) + return log_msg_ret("sav", ret); + break; + } + } + + return 0; +} + +int scene_textline_render_deps(struct scene *scn, + struct scene_obj_textline *tline) +{ + const bool open = tline->obj.flags & SCENEOF_OPEN; + struct udevice *cons = scn->expo->cons; + struct scene_obj_txt *txt; + int ret; + + scene_render_deps(scn, tline->label_id); + scene_render_deps(scn, tline->edit_id); + + /* show the vidconsole cursor if open */ + if (open) { + /* get the position within the field */ + txt = scene_obj_find(scn, tline->edit_id, SCENEOBJT_NONE); + if (!txt) + return log_msg_ret("cur", -ENOENT); + + if (txt->font_name || txt->font_size) { + ret = vidconsole_select_font(cons, + txt->font_name, + txt->font_size); + } else { + ret = vidconsole_select_font(cons, NULL, 0); + } + + ret = vidconsole_entry_restore(cons, &scn->entry_save); + if (ret) + return log_msg_ret("sav", ret); + + vidconsole_set_cursor_visible(cons, true, txt->obj.dim.x, + txt->obj.dim.y, scn->cls.num); + } + + return 0; +} + +int scene_textline_open(struct scene *scn, struct scene_obj_textline *tline) +{ + struct udevice *cons = scn->expo->cons; + struct scene_obj_txt *txt; + int ret; + + /* Copy the text into the scene buffer in case the edit is cancelled */ + memcpy(abuf_data(&scn->buf), abuf_data(&tline->buf), + abuf_size(&scn->buf)); + + /* get the position of the editable */ + txt = scene_obj_find(scn, tline->edit_id, SCENEOBJT_NONE); + if (!txt) + return log_msg_ret("cur", -ENOENT); + + vidconsole_set_cursor_pos(cons, txt->obj.dim.x, txt->obj.dim.y); + vidconsole_entry_start(cons); + cli_cread_init(&scn->cls, abuf_data(&tline->buf), tline->max_chars); + scn->cls.insert = true; + ret = vidconsole_entry_save(cons, &scn->entry_save); + if (ret) + return log_msg_ret("sav", ret); + + return 0; +} + +int scene_textline_close(struct scene *scn, struct scene_obj_textline *tline) +{ + return 0; +} -- cgit