9 #include "lv_label_private.h"
10 #include "../../misc/lv_area_private.h"
11 #include "../../misc/lv_anim_private.h"
12 #include "../../draw/lv_draw_label_private.h"
13 #include "../../core/lv_obj_class_private.h"
15 #include "../../core/lv_obj_private.h"
16 #include "../../misc/lv_assert.h"
17 #include "../../core/lv_group.h"
18 #include "../../display/lv_display.h"
19 #include "../../draw/lv_draw_private.h"
20 #include "../../misc/lv_color.h"
21 #include "../../misc/lv_math.h"
22 #include "../../misc/lv_bidi_private.h"
23 #include "../../misc/lv_text_ap.h"
24 #include "../../misc/lv_text_private.h"
25 #include "../../stdlib/lv_sprintf.h"
26 #include "../../stdlib/lv_string.h"
139     if(text == NULL) text = label->text;  in lv_label_set_text()
141     lv_label_revert_dots(obj); /*In case text == label->text*/  in lv_label_set_text()
145     if(label->text == text && label->static_txt == 0) {  in lv_label_set_text()
146         label->text = lv_realloc(label->text, text_len);  in lv_label_set_text()
147         LV_ASSERT_MALLOC(label->text);  in lv_label_set_text()
148         if(label->text == NULL) return;  in lv_label_set_text()
151         lv_text_ap_proc(label->text, label->text);  in lv_label_set_text()
157         if(label->text != NULL && label->static_txt == 0) {  in lv_label_set_text()
158             lv_free(label->text);  in lv_label_set_text()
159             label->text = NULL;  in lv_label_set_text()
162         label->text = lv_malloc(text_len);  in lv_label_set_text()
163         LV_ASSERT_MALLOC(label->text);  in lv_label_set_text()
164         if(label->text == NULL) return;  in lv_label_set_text()
169         label->static_txt = 0;  in lv_label_set_text()
189     if(label->text != NULL && label->static_txt == 0) {  in lv_label_set_text_fmt()
190         lv_free(label->text);  in lv_label_set_text_fmt()
191         label->text = NULL;  in lv_label_set_text_fmt()
196     label->text = lv_text_set_text_vfmt(fmt, args);  in lv_label_set_text_fmt()
198     label->static_txt = 0; /*Now the text is dynamically allocated*/  in lv_label_set_text_fmt()
208     if(label->static_txt == 0 && label->text != NULL) {  in lv_label_set_text_static()
209         lv_free(label->text);  in lv_label_set_text_static()
210         label->text = NULL;  in lv_label_set_text_static()
214         label->static_txt = 1;  in lv_label_set_text_static()
215         label->text       = (char *)text;  in lv_label_set_text_static()
230     lv_point_set(&label->offset, 0, 0);  in lv_label_set_long_mode()
234         label->expand = 1;  in lv_label_set_long_mode()
236         label->expand = 0;  in lv_label_set_long_mode()
238     label->long_mode = long_mode;  in lv_label_set_long_mode()
248     label->sel_start   = index;  in lv_label_set_text_selection_start()
262     label->sel_end     = index;  in lv_label_set_text_selection_end()
275     if(label->recolor == en) return;  in lv_label_set_recolor()
277     label->recolor = en == false ? 0 : 1;  in lv_label_set_recolor()
291     return label->text;  in lv_label_get_text()
298     return label->long_mode;  in lv_label_get_long_mode()
311         pos->y = 0;  in lv_label_get_letter_pos()
314                 pos->x = 0;  in lv_label_get_letter_pos()
317                 pos->x = lv_obj_get_content_width(obj);  in lv_label_get_letter_pos()
320                 pos->x = lv_obj_get_content_width(obj) / 2;  in lv_label_get_letter_pos()
323                 pos->x = 0;  in lv_label_get_letter_pos()
349         if(last_line && label->long_mode == LV_LABEL_LONG_MODE_DOTS) flag |= LV_TEXT_FLAG_BREAK_ALL;  in lv_label_get_letter_pos()
361         if((txt[byte_id - 1] == '\n' || txt[byte_id - 1] == '\r') && txt[byte_id] == '\0') {  in lv_label_get_letter_pos()
376         visual_byte_pos = base_dir == LV_BASE_DIR_RTL ? 0 : byte_id - line_start;  in lv_label_get_letter_pos()
380         uint32_t line_char_id = lv_text_encoded_get_char_id(&txt[line_start], byte_id - line_start);  in lv_label_get_letter_pos()
383 …char_pos = lv_bidi_get_visual_pos(&txt[line_start], &mutable_bidi_txt, new_line_start - line_start,  in lv_label_get_letter_pos()
392     visual_byte_pos = byte_id - line_start;  in lv_label_get_letter_pos()
399     uint32_t length = new_line_start - line_start;  in lv_label_get_letter_pos()
401     pos->x = x;  in lv_label_get_letter_pos()
402     pos->y = y;  in lv_label_get_letter_pos()
417     pos.x = pos_in->x - lv_obj_get_style_pad_left(obj, LV_PART_MAIN);  in lv_label_get_letter_on()
418     pos.y = pos_in->y - lv_obj_get_style_pad_top(obj, LV_PART_MAIN);  in lv_label_get_letter_on()
440         if(last_line && label->long_mode == LV_LABEL_LONG_MODE_DOTS) flag |= LV_TEXT_FLAG_BREAK_ALL;  in lv_label_get_letter_on()
446             /*Include the NULL terminator in the last line*/  in lv_label_get_letter_on()
463         bidi_txt = lv_malloc(new_line_start - line_start + 1);  in lv_label_get_letter_on()
464         txt_len = new_line_start - line_start;  in lv_label_get_letter_on()
465         if(new_line_start > 0 && txt[new_line_start - 1] == '\0' && txt_len > 0) txt_len--;  in lv_label_get_letter_on()
476     const lv_text_align_t align = lv_obj_calculate_style_text_align(obj, LV_PART_MAIN, label->text);  in lv_label_get_letter_on()
477     uint32_t length = new_line_start - line_start;  in lv_label_get_letter_on()
561         if(last_line && label->long_mode == LV_LABEL_LONG_MODE_DOTS) flag |= LV_TEXT_FLAG_BREAK_ALL;  in lv_label_is_char_under_pos()
565         if(pos->y <= y + letter_height) break; /*The line is found (stored in 'line_start')*/  in lv_label_is_char_under_pos()
572     const lv_text_align_t align = lv_obj_calculate_style_text_align(obj, LV_PART_MAIN, label->text);  in lv_label_is_char_under_pos()
576 …const int32_t line_w = lv_text_get_width_with_flags(&txt[line_start], new_line_start - line_start,…  in lv_label_is_char_under_pos()
578         x += lv_area_get_width(&txt_coords) / 2 - line_w / 2;  in lv_label_is_char_under_pos()
581 …const int32_t line_w = lv_text_get_width_with_flags(&txt[line_start], new_line_start - line_start,…  in lv_label_is_char_under_pos()
583         x += lv_area_get_width(&txt_coords) - line_w;  in lv_label_is_char_under_pos()
595         while(i <= new_line_start - 1) {  in lv_label_is_char_under_pos()
608             if(pos->x < x) {  in lv_label_is_char_under_pos()
618     return (pos->x >= (last_x - letter_space) && pos->x <= (last_x + max_diff));  in lv_label_is_char_under_pos()
627     return label->sel_start;  in lv_label_get_text_selection_start()
640     return label->sel_end;  in lv_label_get_text_selection_end()
652     return label->recolor == 0 ? false : true;  in lv_label_get_recolor()
667     if(label->static_txt != 0) return;  in lv_label_ins_text()
672     size_t old_len = lv_strlen(label->text);  in lv_label_ins_text()
675     label->text        = lv_realloc(label->text, new_len + 1);  in lv_label_ins_text()
676     LV_ASSERT_MALLOC(label->text);  in lv_label_ins_text()
677     if(label->text == NULL) return;  in lv_label_ins_text()
680         pos = lv_text_get_encoded_length(label->text);  in lv_label_ins_text()
683     lv_text_ins(label->text, pos, txt);  in lv_label_ins_text()
693     if(label->static_txt) return;  in lv_label_cut_text()
716     label->text       = NULL;  in lv_label_constructor()
717     label->recolor    = 0;  in lv_label_constructor()
718     label->static_txt = 0;  in lv_label_constructor()
719     label->dot_begin  = LV_LABEL_DOT_BEGIN_INV;  in lv_label_constructor()
720     label->long_mode  = LV_LABEL_LONG_MODE_WRAP;  in lv_label_constructor()
721     lv_point_set(&label->offset, 0, 0);  in lv_label_constructor()
724     label->hint.line_start = -1;  in lv_label_constructor()
725     label->hint.coord_y    = 0;  in lv_label_constructor()
726     label->hint.y          = 0;  in lv_label_constructor()
730     label->sel_start = LV_DRAW_LABEL_NO_TXT_SEL;  in lv_label_constructor()
731     label->sel_end   = LV_DRAW_LABEL_NO_TXT_SEL;  in lv_label_constructor()
746     if(!label->static_txt) lv_free(label->text);  in lv_label_destructor()
747     label->text = NULL;  in lv_label_destructor()
765         /* Italic or other non-typical letters can be drawn of out of the object.  in lv_label_event()
775         if(label->invalid_size_cache) {  in lv_label_event()
780             if(label->recolor != 0) flag |= LV_TEXT_FLAG_RECOLOR;  in lv_label_event()
781             if(label->expand != 0) flag |= LV_TEXT_FLAG_EXPAND;  in lv_label_event()
784 …if(lv_obj_get_style_width(obj, LV_PART_MAIN) == LV_SIZE_CONTENT && !obj->w_layout) w = LV_COORD_MA…  in lv_label_event()
788             uint32_t dot_begin = label->dot_begin;  in lv_label_event()
790 …        lv_text_get_size(&label->size_cache, label->text, font, letter_space, line_space, w, flag);  in lv_label_event()
793 … label->size_cache.y = LV_MIN(label->size_cache.y, lv_obj_get_style_max_height(obj, LV_PART_MAIN));  in lv_label_event()
795             label->invalid_size_cache = false;  in lv_label_event()
799         self_size->x = LV_MAX(self_size->x, label->size_cache.x);  in lv_label_event()
800         self_size->y = LV_MAX(self_size->y, label->size_cache.y);  in lv_label_event()
820     label_draw_dsc.text = label->text;  in draw_main()
821     label_draw_dsc.text_static = label->static_txt;  in draw_main()
822     label_draw_dsc.ofs_x = label->offset.x;  in draw_main()
823     label_draw_dsc.ofs_y = label->offset.y;  in draw_main()
825     if(label->long_mode != LV_LABEL_LONG_MODE_SCROLL_CIRCULAR &&  in draw_main()
827         label_draw_dsc.hint = &label->hint;  in draw_main()
834     lv_bidi_calculate_align(&label_draw_dsc.align, &label_draw_dsc.bidi_dir, label->text);  in draw_main()
845 …if((label->long_mode == LV_LABEL_LONG_MODE_SCROLL || label->long_mode == LV_LABEL_LONG_MODE_SCROLL…  in draw_main()
848 …lv_text_get_size(&size, label->text, label_draw_dsc.font, label_draw_dsc.letter_space, label_draw_…  in draw_main()
856     bool is_common = lv_area_intersect(&txt_clip, &txt_coords, &layer->_clip_area);  in draw_main()
861     if(label->long_mode == LV_LABEL_LONG_MODE_WRAP) {  in draw_main()
863         lv_area_move(&txt_coords, 0, -s);  in draw_main()
864         txt_coords.y2 = obj->coords.y2;  in draw_main()
866 …if(label->long_mode == LV_LABEL_LONG_MODE_SCROLL || label->long_mode == LV_LABEL_LONG_MODE_SCROLL_…  in draw_main()
867         const lv_area_t clip_area_ori = layer->_clip_area;  in draw_main()
868         layer->_clip_area = txt_clip;  in draw_main()
870         layer->_clip_area = clip_area_ori;  in draw_main()
876     lv_area_t clip_area_ori = layer->_clip_area;  in draw_main()
877     layer->_clip_area = txt_clip;  in draw_main()
879     if(label->long_mode == LV_LABEL_LONG_MODE_SCROLL_CIRCULAR) {  in draw_main()
881 …lv_text_get_size(&size, label->text, label_draw_dsc.font, label_draw_dsc.letter_space, label_draw_…  in draw_main()
886             label_draw_dsc.ofs_x = label->offset.x + size.x +  in draw_main()
888             label_draw_dsc.ofs_y = label->offset.y;  in draw_main()
895             label_draw_dsc.ofs_x = label->offset.x;  in draw_main()
896 …    label_draw_dsc.ofs_y = label->offset.y + size.y + lv_font_get_line_height(label_draw_dsc.font);  in draw_main()
902     layer->_clip_area = clip_area_ori;  in draw_main()
910             if(dest->act_time <= 0)  in overwrite_anim_property()
911                 dest->act_time = src->act_time;  in overwrite_anim_property()
912             dest->repeat_cnt = src->repeat_cnt;  in overwrite_anim_property()
913             dest->repeat_delay = src->repeat_delay;  in overwrite_anim_property()
914             dest->completed_cb = src->completed_cb;  in overwrite_anim_property()
915             dest->reverse_delay = src->reverse_delay;  in overwrite_anim_property()
919             if(dest->act_time <= 0)  in overwrite_anim_property()
920                 dest->act_time = src->act_time;  in overwrite_anim_property()
921             dest->repeat_cnt = src->repeat_cnt;  in overwrite_anim_property()
922             dest->repeat_delay = src->repeat_delay;  in overwrite_anim_property()
923             dest->completed_cb = src->completed_cb;  in overwrite_anim_property()
937     if(label->text == NULL) return;  in lv_label_refr_text()
939     label->hint.line_start = -1; /*The hint is invalid if the text changes*/  in lv_label_refr_text()
941     label->invalid_size_cache = true;  in lv_label_refr_text()
955     lv_text_get_size(&size, label->text, font, letter_space, line_space, max_w, flag);  in lv_label_refr_text()
960     if(label->long_mode == LV_LABEL_LONG_MODE_SCROLL) {  in lv_label_refr_text()
980                 base_dir = lv_bidi_detect_base_dir(label->text);  in lv_label_refr_text()
983                 start = lv_area_get_width(&txt_coords) - size.x;  in lv_label_refr_text()
988                 end = lv_area_get_width(&txt_coords) - size.x;  in lv_label_refr_text()
991             end = lv_area_get_width(&txt_coords) - size.x;  in lv_label_refr_text()
1001                 act_time = anim_cur->act_time;  in lv_label_refr_text()
1002                 reverse_play_in_progress = anim_cur->reverse_play_in_progress;  in lv_label_refr_text()
1024                 overwrite_anim_property(&a, anim_template, label->long_mode);  in lv_label_refr_text()
1028             if(act_time < 0) label->offset.x = start;  in lv_label_refr_text()
1035             label->offset.x = 0;  in lv_label_refr_text()
1039 …lv_anim_set_values(&a, 0, lv_area_get_height(&txt_coords) - size.y - (lv_font_get_line_height(font…  in lv_label_refr_text()
1046                 act_time = anim_cur->act_time;  in lv_label_refr_text()
1047                 reverse_play_in_progress = anim_cur->reverse_play_in_progress;  in lv_label_refr_text()
1066                 overwrite_anim_property(&a, anim_template, label->long_mode);  in lv_label_refr_text()
1073             label->offset.y = 0;  in lv_label_refr_text()
1077     else if(label->long_mode == LV_LABEL_LONG_MODE_SCROLL_CIRCULAR) {  in lv_label_refr_text()
1093                 base_dir = lv_bidi_detect_base_dir(label->text);  in lv_label_refr_text()
1096 …              start = -size.x - lv_font_get_glyph_width(font, ' ', ' ') * LV_LABEL_WAIT_CHAR_COUNT;  in lv_label_refr_text()
1101                 end = -size.x - lv_font_get_glyph_width(font, ' ', ' ') * LV_LABEL_WAIT_CHAR_COUNT;  in lv_label_refr_text()
1106 …lv_anim_set_values(&a, 0, -size.x - lv_font_get_glyph_width(font, ' ', ' ') * LV_LABEL_WAIT_CHAR_C…  in lv_label_refr_text()
1112             int32_t act_time = anim_cur ? anim_cur->act_time : 0;  in lv_label_refr_text()
1114             /*To keep the old position when the label text is updated mid-scrolling*/  in lv_label_refr_text()
1122                 overwrite_anim_property(&a, anim_template, label->long_mode);  in lv_label_refr_text()
1131             label->offset.x = 0;  in lv_label_refr_text()
1135             lv_anim_set_values(&a, 0, -size.y - (lv_font_get_line_height(font)));  in lv_label_refr_text()
1140             int32_t act_time = anim_cur ? anim_cur->act_time : 0;  in lv_label_refr_text()
1144                 overwrite_anim_property(&a, anim_template, label->long_mode);  in lv_label_refr_text()
1146             /*To keep the old position when the label text is updated mid-scrolling*/  in lv_label_refr_text()
1156             label->offset.y = 0;  in lv_label_refr_text()
1159     else if(label->long_mode == LV_LABEL_LONG_MODE_DOTS) {  in lv_label_refr_text()
1162 …lv_text_get_encoded_length(label->text) > LV_LABEL_DOT_NUM) { /*Do not turn all characters into do…  in lv_label_refr_text()
1165             p.x = lv_area_get_width(&txt_coords) -  in lv_label_refr_text()
1172                 p.y -= y_overed;  in lv_label_refr_text()
1176                 p.y -= y_overed;  in lv_label_refr_text()
1177                 p.y -= line_space;  in lv_label_refr_text()
1183             size_t txt_len = lv_strlen(label->text);  in lv_label_refr_text()
1184             uint32_t byte_id     = lv_text_encoded_get_byte_id(label->text, letter_id);  in lv_label_refr_text()
1186                 lv_text_encoded_prev(label->text, &byte_id);  in lv_label_refr_text()
1187                 letter_id--;  in lv_label_refr_text()
1194 …else if(label->long_mode == LV_LABEL_LONG_MODE_CLIP || label->long_mode == LV_LABEL_LONG_MODE_WRAP…  in lv_label_refr_text()
1204     if(label->dot_begin != LV_LABEL_DOT_BEGIN_INV) {  in lv_label_revert_dots()
1205         for(int i = 0; i < LV_LABEL_DOT_NUM + 1 && label->dot[i]; i++) {  in lv_label_revert_dots()
1206             label->text[label->dot_begin + i] = label->dot[i];  in lv_label_revert_dots()
1208         label->dot_begin = LV_LABEL_DOT_BEGIN_INV;  in lv_label_revert_dots()
1215     LV_ASSERT_MSG(label->dot_begin == LV_LABEL_DOT_BEGIN_INV, "Label dots already set");  in lv_label_set_dots()
1218         lv_strncpy(label->dot, &label->text[dot_begin], LV_LABEL_DOT_NUM + 1);  in lv_label_set_dots()
1219         label->dot_begin = dot_begin;  in lv_label_set_dots()
1223         for(; i < LV_LABEL_DOT_NUM && label->text[dot_begin + i]; i++) {  in lv_label_set_dots()
1224             label->text[dot_begin + i] = '.';  in lv_label_set_dots()
1226         label->text[dot_begin + i] = '\0';  in lv_label_set_dots()
1233     label->offset.x    = v;  in set_ofs_x_anim()
1240     label->offset.y    = v;  in set_ofs_y_anim()
1259     lv_text_ap_proc(text, label->text);  in copy_text_to_label()
1261     lv_strcpy(label->text, text);  in copy_text_to_label()
1269     if(label->recolor) flag |= LV_TEXT_FLAG_RECOLOR;  in get_label_flags()
1270     if(label->expand) flag |= LV_TEXT_FLAG_EXPAND;  in get_label_flags()
1275        !obj->w_layout) {  in get_label_flags()
1288         *x += lv_area_get_width(txt_coords) / 2 - line_w / 2;  in calculate_x_coordinate()
1292         *x += lv_area_get_width(txt_coords) - line_w;  in calculate_x_coordinate()