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hekate/bdk/libs/lvgl/lv_objx/lv_ta.c
CTCaer 185526d134 Introducing Bootloader Development Kit (BDK) 
BDK will allow developers to use the full collection of drivers,
with limited editing, if any, for making payloads for Nintendo Switch.

Using a single source for everything will also help decoupling
Switch specific code and easily port it to other Tegra X1/X1+ platforms.
And maybe even to lower targets.

Everything is now centrilized into bdk folder.
Every module or project can utilize it by simply including it.

This is just the start and it will continue to improve.
2020-06-14 15:25:21 +03:00

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/**
* @file lv_ta.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_ta.h"
#if USE_LV_TA != 0
#include "../lv_core/lv_group.h"
#include "../lv_core/lv_refr.h"
#include "../lv_draw/lv_draw.h"
#include "../lv_themes/lv_theme.h"
#include "../lv_misc/lv_anim.h"
#include "../lv_misc/lv_txt.h"
#include "../lv_misc/lv_math.h"
/*********************
* DEFINES
*********************/
/*Test configuration*/
#ifndef LV_TA_CURSOR_BLINK_TIME
#define LV_TA_CURSOR_BLINK_TIME 400 /*ms*/
#endif
#ifndef LV_TA_PWD_SHOW_TIME
#define LV_TA_PWD_SHOW_TIME 1500 /*ms*/
#endif
#define LV_TA_DEF_WIDTH (2 * LV_DPI)
#define LV_TA_DEF_HEIGHT (1 * LV_DPI)
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static bool lv_ta_design(lv_obj_t * ta, const lv_area_t * mask, lv_design_mode_t mode);
static bool lv_ta_scrollable_design(lv_obj_t * scrl, const lv_area_t * mask, lv_design_mode_t mode);
static lv_res_t lv_ta_signal(lv_obj_t * ta, lv_signal_t sign, void * param);
static lv_res_t lv_ta_scrollable_signal(lv_obj_t * scrl, lv_signal_t sign, void * param);
#if USE_LV_ANIMATION
static void cursor_blink_anim(lv_obj_t * ta, uint8_t show);
static void pwd_char_hider_anim(lv_obj_t * ta, int32_t x);
#endif
static void pwd_char_hider(lv_obj_t * ta);
static bool char_is_accepted(lv_obj_t * ta, uint32_t c);
static void get_cursor_style(lv_obj_t * ta, lv_style_t * style_res);
static void refr_cursor_area(lv_obj_t * ta);
/**********************
* STATIC VARIABLES
**********************/
static lv_design_func_t ancestor_design;
static lv_design_func_t scrl_design;
static lv_signal_func_t ancestor_signal;
static lv_signal_func_t scrl_signal;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Create a text area objects
* @param par pointer to an object, it will be the parent of the new text area
* @param copy pointer to a text area object, if not NULL then the new object will be copied from it
* @return pointer to the created text area
*/
lv_obj_t * lv_ta_create(lv_obj_t * par, const lv_obj_t * copy)
{
LV_LOG_TRACE("text area create started");
/*Create the ancestor object*/
lv_obj_t * new_ta = lv_page_create(par, copy);
lv_mem_assert(new_ta);
if(new_ta == NULL) return NULL;
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_ta);
if(ancestor_design == NULL) ancestor_design = lv_obj_get_design_func(new_ta);
if(scrl_signal == NULL) scrl_signal = lv_obj_get_signal_func(lv_page_get_scrl(new_ta));
if(scrl_design == NULL) scrl_design = lv_obj_get_design_func(lv_page_get_scrl(new_ta));
/*Allocate the object type specific extended data*/
lv_ta_ext_t * ext = lv_obj_allocate_ext_attr(new_ta, sizeof(lv_ta_ext_t));
lv_mem_assert(ext);
if(ext == NULL) return NULL;
ext->cursor.state = 1;
ext->pwd_mode = 0;
ext->pwd_tmp = NULL;
ext->accapted_chars = NULL;
ext->max_length = 0;
ext->cursor.style = NULL;
ext->cursor.pos = 0;
ext->cursor.type = LV_CURSOR_LINE;
ext->cursor.valid_x = 0;
ext->one_line = 0;
ext->label = NULL;
lv_obj_set_signal_func(new_ta, lv_ta_signal);
lv_obj_set_signal_func(lv_page_get_scrl(new_ta), lv_ta_scrollable_signal);
lv_obj_set_design_func(new_ta, lv_ta_design);
/*Init the new text area object*/
if(copy == NULL) {
ext->label = lv_label_create(new_ta, NULL);
lv_obj_set_design_func(ext->page.scrl, lv_ta_scrollable_design);
lv_label_set_long_mode(ext->label, LV_LABEL_LONG_BREAK);
lv_label_set_text(ext->label, "Text area");
lv_obj_set_click(ext->label, false);
lv_obj_set_size(new_ta, LV_TA_DEF_WIDTH, LV_TA_DEF_HEIGHT);
lv_ta_set_sb_mode(new_ta, LV_SB_MODE_DRAG);
lv_page_set_style(new_ta, LV_PAGE_STYLE_SCRL, &lv_style_transp_tight);
/*Set the default styles*/
lv_theme_t * th = lv_theme_get_current();
if(th) {
lv_ta_set_style(new_ta, LV_TA_STYLE_BG, th->ta.area);
lv_ta_set_style(new_ta, LV_TA_STYLE_SB, th->ta.sb);
} else {
lv_ta_set_style(new_ta, LV_TA_STYLE_BG, &lv_style_pretty);
}
}
/*Copy an existing object*/
else {
lv_obj_set_design_func(ext->page.scrl, lv_ta_scrollable_design);
lv_ta_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
ext->label = lv_label_create(new_ta, copy_ext->label);
ext->pwd_mode = copy_ext->pwd_mode;
ext->accapted_chars = copy_ext->accapted_chars;
ext->max_length = copy_ext->max_length;
ext->cursor.style = copy_ext->cursor.style;
ext->cursor.pos = copy_ext->cursor.pos;
ext->cursor.valid_x = copy_ext->cursor.valid_x;
ext->cursor.type = copy_ext->cursor.type;
if(copy_ext->one_line) lv_ta_set_one_line(new_ta, true);
lv_ta_set_style(new_ta, LV_TA_STYLE_CURSOR, lv_ta_get_style(copy, LV_TA_STYLE_CURSOR));
/*Refresh the style with new signal function*/
lv_obj_refresh_style(new_ta);
}
#if USE_LV_ANIMATION
/*Create a cursor blinker animation*/
lv_anim_t a;
a.var = new_ta;
a.fp = (lv_anim_fp_t)cursor_blink_anim;
a.time = LV_TA_CURSOR_BLINK_TIME;
a.act_time = 0;
a.end_cb = NULL;
a.start = 1;
a.end = 0;
a.repeat = 1;
a.repeat_pause = 0;
a.playback = 1;
a.playback_pause = 0;
a.path = lv_anim_path_step;
lv_anim_create(&a);
#endif
LV_LOG_INFO("text area created");
return new_ta;
}
/*======================
* Add/remove functions
*=====================*/
/**
* Insert a character to the current cursor position.
* To add a wide char, e.g. 'Á' use `lv_txt_encoded_conv_wc('Á')`
* @param ta pointer to a text area object
* @param c a character (e.g. 'a')
*/
void lv_ta_add_char(lv_obj_t * ta, uint32_t c)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
if(ext->one_line && (c == '\n' || c == '\r')) {
LV_LOG_INFO("Text area: line break ignored in one-line mode");
return;
}
uint32_t c_uni = lv_txt_encoded_next((const char *)&c, NULL);
if(char_is_accepted(ta, c_uni) == false) {
LV_LOG_INFO("Character is no accepted by the text area (too long text or not in the accepted list)");
return;
}
/*Disable edge flash. If a new line was added it could show edge flash effect*/
bool edge_flash_en = lv_ta_get_edge_flash(ta);
lv_ta_set_edge_flash(ta, false);
if(ext->pwd_mode != 0) pwd_char_hider(ta); /*Make sure all the current text contains only '*'*/
uint32_t letter_buf[2];
letter_buf[0] = c;
letter_buf[1] = '\0';
lv_label_ins_text(ext->label, ext->cursor.pos, (const char *)letter_buf); /*Insert the character*/
if(ext->pwd_mode != 0) {
ext->pwd_tmp = lv_mem_realloc(ext->pwd_tmp, strlen(ext->pwd_tmp) + 2); /*+2: the new char + \0 */
lv_mem_assert(ext->pwd_tmp);
if(ext->pwd_tmp == NULL) return;
lv_txt_ins(ext->pwd_tmp, ext->cursor.pos, (const char *)letter_buf);
#if USE_LV_ANIMATION && LV_TA_PWD_SHOW_TIME > 0
/*Auto hide characters*/
lv_anim_t a;
a.var = ta;
a.fp = (lv_anim_fp_t)pwd_char_hider_anim;
a.time = LV_TA_PWD_SHOW_TIME;
a.act_time = 0;
a.end_cb = (lv_anim_cb_t)pwd_char_hider;
a.start = 0;
a.end = 1;
a.repeat = 0;
a.repeat_pause = 0;
a.playback = 0;
a.playback_pause = 0;
a.path = lv_anim_path_step;
lv_anim_create(&a);
#else
pwd_char_hider(ta);
#endif
}
/*Move the cursor after the new character*/
lv_ta_set_cursor_pos(ta, lv_ta_get_cursor_pos(ta) + 1);
/*Revert the original edge flash state*/
lv_ta_set_edge_flash(ta, edge_flash_en);
}
/**
* Insert a text to the current cursor position
* @param ta pointer to a text area object
* @param txt a '\0' terminated string to insert
*/
void lv_ta_add_text(lv_obj_t * ta, const char * txt)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
if(ext->pwd_mode != 0) pwd_char_hider(ta); /*Make sure all the current text contains only '*'*/
/*Add the character one-by-one if not all characters are accepted or there is character limit.*/
if(lv_ta_get_accepted_chars(ta) || lv_ta_get_max_length(ta)) {
uint32_t i = 0;
while(txt[i] != '\0') {
uint32_t c = lv_txt_encoded_next(txt, &i);
lv_ta_add_char(ta, lv_txt_unicode_to_encoded(c));
}
return;
}
/*Disable edge flash. If a new line was added it could show edge flash effect*/
bool edge_flash_en = lv_ta_get_edge_flash(ta);
lv_ta_set_edge_flash(ta, false);
/*Insert the text*/
lv_label_ins_text(ext->label, ext->cursor.pos, txt);
if(ext->pwd_mode != 0) {
ext->pwd_tmp = lv_mem_realloc(ext->pwd_tmp, strlen(ext->pwd_tmp) + strlen(txt) + 1);
lv_mem_assert(ext->pwd_tmp);
if(ext->pwd_tmp == NULL) return;
lv_txt_ins(ext->pwd_tmp, ext->cursor.pos, txt);
#if USE_LV_ANIMATION && LV_TA_PWD_SHOW_TIME > 0
/*Auto hide characters*/
lv_anim_t a;
a.var = ta;
a.fp = (lv_anim_fp_t)pwd_char_hider_anim;
a.time = LV_TA_PWD_SHOW_TIME;
a.act_time = 0;
a.end_cb = (lv_anim_cb_t)pwd_char_hider;
a.start = 0;
a.end = 1;
a.repeat = 0;
a.repeat_pause = 0;
a.playback = 0;
a.playback_pause = 0;
a.path = lv_anim_path_step;
lv_anim_create(&a);
#else
pwd_char_hider(ta);
#endif
}
/*Move the cursor after the new text*/
lv_ta_set_cursor_pos(ta, lv_ta_get_cursor_pos(ta) + lv_txt_get_encoded_length(txt));
/*Revert the original edge flash state*/
lv_ta_set_edge_flash(ta, edge_flash_en);
}
/**
* Delete a the left character from the current cursor position
* @param ta pointer to a text area object
*/
void lv_ta_del_char(lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
uint16_t cur_pos = ext->cursor.pos;
if(cur_pos == 0) return;
char * label_txt = lv_label_get_text(ext->label);
/*Delete a character*/
lv_txt_cut(label_txt, ext->cursor.pos - 1, 1);
/*Refresh the label*/
lv_label_set_text(ext->label, label_txt);
/*Don't let 'width == 0' because cursor will not be visible*/
if(lv_obj_get_width(ext->label) == 0) {
lv_style_t * style = lv_obj_get_style(ext->label);
lv_obj_set_width(ext->label, style->line.width);
}
if(ext->pwd_mode != 0) {
#if LV_TXT_UTF8 == 0
lv_txt_cut(ext->pwd_tmp, ext->cursor.pos - 1, 1);
#else
uint32_t byte_pos = lv_txt_encoded_get_byte_id(ext->pwd_tmp, ext->cursor.pos - 1);
lv_txt_cut(ext->pwd_tmp, ext->cursor.pos - 1, lv_txt_encoded_size(&label_txt[byte_pos]));
#endif
ext->pwd_tmp = lv_mem_realloc(ext->pwd_tmp, strlen(ext->pwd_tmp) + 1);
lv_mem_assert(ext->pwd_tmp);
if(ext->pwd_tmp == NULL) return;
}
/*Move the cursor to the place of the deleted character*/
lv_ta_set_cursor_pos(ta, ext->cursor.pos - 1);
}
/*=====================
* Setter functions
*====================*/
/**
* Set the text of a text area
* @param ta pointer to a text area
* @param txt pointer to the text
*/
void lv_ta_set_text(lv_obj_t * ta, const char * txt)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
/*Add the character one-by-one if not all characters are accepted or there is character limit.*/
if(lv_ta_get_accepted_chars(ta) || lv_ta_get_max_length(ta)) {
lv_label_set_text(ext->label, "");
lv_ta_set_cursor_pos(ta, LV_TA_CURSOR_LAST);
uint32_t i = 0;
while(txt[i] != '\0') {
uint32_t c = lv_txt_encoded_next(txt, &i);
lv_ta_add_char(ta, lv_txt_unicode_to_encoded(c));
}
} else {
lv_label_set_text(ext->label, txt);
lv_ta_set_cursor_pos(ta, LV_TA_CURSOR_LAST);
}
/*Don't let 'width == 0' because the cursor will not be visible*/
if(lv_obj_get_width(ext->label) == 0) {
lv_style_t * style = lv_obj_get_style(ext->label);
lv_obj_set_width(ext->label, lv_font_get_width(style->text.font, ' '));
}
if(ext->pwd_mode != 0) {
ext->pwd_tmp = lv_mem_realloc(ext->pwd_tmp, strlen(txt) + 1);
lv_mem_assert(ext->pwd_tmp);
if(ext->pwd_tmp == NULL) return;
strcpy(ext->pwd_tmp, txt);
#if USE_LV_ANIMATION && LV_TA_PWD_SHOW_TIME > 0
/*Auto hide characters*/
lv_anim_t a;
a.var = ta;
a.fp = (lv_anim_fp_t)pwd_char_hider_anim;
a.time = LV_TA_PWD_SHOW_TIME;
a.act_time = 0;
a.end_cb = (lv_anim_cb_t)pwd_char_hider;
a.start = 0;
a.end = 1;
a.repeat = 0;
a.repeat_pause = 0;
a.playback = 0;
a.playback_pause = 0;
a.path = lv_anim_path_step;
lv_anim_create(&a);
#else
pwd_char_hider(ta);
#endif
}
}
/**
* Set the cursor position
* @param obj pointer to a text area object
* @param pos the new cursor position in character index
* < 0 : index from the end of the text
* LV_TA_CURSOR_LAST: go after the last character
*/
void lv_ta_set_cursor_pos(lv_obj_t * ta, int16_t pos)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
if(ext->cursor.pos == pos) return;
uint16_t len = lv_txt_get_encoded_length(lv_label_get_text(ext->label));
if(pos < 0) pos = len + pos;
if(pos > len || pos == LV_TA_CURSOR_LAST) pos = len;
ext->cursor.pos = pos;
/*Position the label to make the cursor visible*/
lv_obj_t * label_par = lv_obj_get_parent(ext->label);
lv_point_t cur_pos;
lv_style_t * style = lv_obj_get_style(ta);
const lv_font_t * font_p = style->text.font;
lv_area_t label_cords;
lv_area_t ta_cords;
lv_label_get_letter_pos(ext->label, pos, &cur_pos);
lv_obj_get_coords(ta, &ta_cords);
lv_obj_get_coords(ext->label, &label_cords);
/*Check the top*/
lv_coord_t font_h = lv_font_get_height(font_p);
if(lv_obj_get_y(label_par) + cur_pos.y < 0) {
lv_obj_set_y(label_par, - cur_pos.y + style->body.padding.ver);
}
/*Check the bottom*/
if(label_cords.y1 + cur_pos.y + font_h + style->body.padding.ver > ta_cords.y2) {
lv_obj_set_y(label_par, -(cur_pos.y - lv_obj_get_height(ta) +
font_h + 2 * style->body.padding.ver));
}
/*Check the left (use the font_h as general unit)*/
if(lv_obj_get_x(label_par) + cur_pos.x < font_h) {
lv_obj_set_x(label_par, - cur_pos.x + font_h);
}
/*Check the right (use the font_h as general unit)*/
if(label_cords.x1 + cur_pos.x + font_h + style->body.padding.hor > ta_cords.x2) {
lv_obj_set_x(label_par, -(cur_pos.x - lv_obj_get_width(ta) +
font_h + 2 * style->body.padding.hor));
}
ext->cursor.valid_x = cur_pos.x;
#if USE_LV_ANIMATION
/*Reset cursor blink animation*/
lv_anim_t a;
a.var = ta;
a.fp = (lv_anim_fp_t)cursor_blink_anim;
a.time = LV_TA_CURSOR_BLINK_TIME;
a.act_time = 0;
a.end_cb = NULL;
a.start = 1;
a.end = 0;
a.repeat = 1;
a.repeat_pause = 0;
a.playback = 1;
a.playback_pause = 0;
a.path = lv_anim_path_step;
lv_anim_create(&a);
#endif
refr_cursor_area(ta);
}
/**
* Set the cursor type.
* @param ta pointer to a text area object
* @param cur_type: element of 'lv_ta_cursor_type_t'
*/
void lv_ta_set_cursor_type(lv_obj_t * ta, lv_cursor_type_t cur_type)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
if(ext->cursor.type == cur_type) return;
ext->cursor.type = cur_type;
refr_cursor_area(ta);
}
/**
* Enable/Disable password mode
* @param ta pointer to a text area object
* @param en true: enable, false: disable
*/
void lv_ta_set_pwd_mode(lv_obj_t * ta, bool en)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
if(ext->pwd_mode == en) return;
/*Pwd mode is now enabled*/
if(ext->pwd_mode == 0 && en != false) {
char * txt = lv_label_get_text(ext->label);
uint16_t len = strlen(txt);
ext->pwd_tmp = lv_mem_alloc(len + 1);
lv_mem_assert(ext->pwd_tmp);
if(ext->pwd_tmp == NULL) return;
strcpy(ext->pwd_tmp, txt);
uint16_t i;
for(i = 0; i < len; i++) {
txt[i] = '*'; /*All char to '*'*/
}
txt[i] = '\0';
lv_label_set_text(ext->label, NULL);
}
/*Pwd mode is now disabled*/
else if(ext->pwd_mode == 1 && en == false) {
lv_label_set_text(ext->label, ext->pwd_tmp);
lv_mem_free(ext->pwd_tmp);
ext->pwd_tmp = NULL;
}
ext->pwd_mode = en == false ? 0 : 1;
refr_cursor_area(ta);
}
/**
* Configure the text area to one line or back to normal
* @param ta pointer to a Text area object
* @param en true: one line, false: normal
*/
void lv_ta_set_one_line(lv_obj_t * ta, bool en)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
if(ext->one_line == en) return;
if(en) {
lv_style_t * style_ta = lv_obj_get_style(ta);
lv_style_t * style_scrl = lv_obj_get_style(lv_page_get_scrl(ta));
lv_style_t * style_label = lv_obj_get_style(ext->label);
lv_coord_t font_h = lv_font_get_height(style_label->text.font);
ext->one_line = 1;
lv_page_set_scrl_fit(ta, true, true);
lv_obj_set_height(ta, font_h + (style_ta->body.padding.ver + style_scrl->body.padding.ver) * 2);
lv_label_set_long_mode(ext->label, LV_LABEL_LONG_EXPAND);
lv_obj_set_pos(lv_page_get_scrl(ta), style_ta->body.padding.hor, style_ta->body.padding.ver);
} else {
lv_style_t * style_ta = lv_obj_get_style(ta);
ext->one_line = 0;
lv_page_set_scrl_fit(ta, false, true);
lv_label_set_long_mode(ext->label, LV_LABEL_LONG_BREAK);
lv_obj_set_height(ta, LV_TA_DEF_HEIGHT);
lv_obj_set_pos(lv_page_get_scrl(ta), style_ta->body.padding.hor, style_ta->body.padding.ver);
}
refr_cursor_area(ta);
}
/**
* Set the alignment of the text area.
* In one line mode the text can be scrolled only with `LV_LABEL_ALIGN_LEFT`.
* This function should be called if the size of text area changes.
* @param ta pointer to a text are object
* @param align the desired alignment from `lv_label_align_t`. (LV_LABEL_ALIGN_LEFT/CENTER/RIGHT)
*/
void lv_ta_set_text_align(lv_obj_t * ta, lv_label_align_t align)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
lv_obj_t * label = lv_ta_get_label(ta);
if(!ext->one_line) {
lv_label_set_align(label, align);
} else {
/*Normal left align. Just let the text expand*/
if(align == LV_LABEL_ALIGN_LEFT) {
lv_label_set_long_mode(label, LV_LABEL_LONG_EXPAND);
lv_page_set_scrl_fit(ta, true, false);
lv_label_set_align(label, align);
}
/*Else use fix label width equal to the Text area width*/
else {
lv_label_set_long_mode(label, LV_LABEL_LONG_CROP);
lv_page_set_scrl_fit(ta, false, false);
lv_page_set_scrl_width(ta, 1); /*To refresh the scrollable's width*/
lv_label_set_align(label, align);
lv_style_t * bg_style = lv_ta_get_style(ta, LV_TA_STYLE_BG);
lv_obj_set_width(label, lv_obj_get_width(ta) - 2 * bg_style->body.padding.hor);
}
}
refr_cursor_area(ta);
}
/**
* Set a list of characters. Only these characters will be accepted by the text area
* @param ta pointer to Text Area
* @param list list of characters. Only the pointer is saved. E.g. "+-.,0123456789"
*/
void lv_ta_set_accepted_chars(lv_obj_t * ta, const char * list)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
ext->accapted_chars = list;
}
/**
* Set max length of a Text Area.
* @param ta pointer to Text Area
* @param num the maximal number of characters can be added (`lv_ta_set_text` ignores it)
*/
void lv_ta_set_max_length(lv_obj_t * ta, uint16_t num)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
ext->max_length = num;
}
/**
* Set a style of a text area
* @param ta pointer to a text area object
* @param type which style should be set
* @param style pointer to a style
*/
void lv_ta_set_style(lv_obj_t * ta, lv_ta_style_t type, lv_style_t * style)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
switch(type) {
case LV_TA_STYLE_BG:
lv_page_set_style(ta, LV_PAGE_STYLE_BG, style);
break;
case LV_TA_STYLE_SB:
lv_page_set_style(ta, LV_PAGE_STYLE_SB, style);
break;
case LV_TA_STYLE_EDGE_FLASH:
lv_page_set_style(ta, LV_PAGE_STYLE_EDGE_FLASH, style);
break;
case LV_TA_STYLE_CURSOR:
ext->cursor.style = style;
lv_obj_refresh_ext_size(lv_page_get_scrl(ta)); /*Refresh ext. size because of cursor drawing*/
refr_cursor_area(ta);
break;
}
}
/*=====================
* Getter functions
*====================*/
/**
* Get the text of a text area. In password mode it gives the real text (not '*'s).
* @param ta pointer to a text area object
* @return pointer to the text
*/
const char * lv_ta_get_text(const lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
const char * txt;
if(ext->pwd_mode == 0) {
txt = lv_label_get_text(ext->label);
} else {
txt = ext->pwd_tmp;
}
return txt;
}
/**
* Get the label of a text area
* @param ta pointer to a text area object
* @return pointer to the label object
*/
lv_obj_t * lv_ta_get_label(const lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
return ext->label;
}
/**
* Get the current cursor position in character index
* @param ta pointer to a text area object
* @return the cursor position
*/
uint16_t lv_ta_get_cursor_pos(const lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
return ext->cursor.pos;
}
/**
* Get the current cursor type.
* @param ta pointer to a text area object
* @return element of 'lv_ta_cursor_type_t'
*/
lv_cursor_type_t lv_ta_get_cursor_type(const lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
return ext->cursor.type;
}
/**
* Get the password mode attribute
* @param ta pointer to a text area object
* @return true: password mode is enabled, false: disabled
*/
bool lv_ta_get_pwd_mode(const lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
return ext->pwd_mode == 0 ? false : true;
}
/**
* Get the one line configuration attribute
* @param ta pointer to a text area object
* @return true: one line configuration is enabled, false: disabled
*/
bool lv_ta_get_one_line(const lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
return ext->one_line == 0 ? false : true;
}
/**
* Get a list of accepted characters.
* @param ta pointer to Text Area
* @return list of accented characters.
*/
const char * lv_ta_get_accepted_chars(lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
return ext->accapted_chars;
}
/**
* Set max length of a Text Area.
* @param ta pointer to Text Area
* @return the maximal number of characters to be add
*/
uint16_t lv_ta_get_max_length(lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
return ext->max_length;
}
/**
* Get a style of a text area
* @param ta pointer to a text area object
* @param type which style should be get
* @return style pointer to a style
*/
lv_style_t * lv_ta_get_style(const lv_obj_t * ta, lv_ta_style_t type)
{
lv_style_t * style = NULL;
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
switch(type) {
case LV_TA_STYLE_BG:
style = lv_page_get_style(ta, LV_PAGE_STYLE_BG);
break;
case LV_TA_STYLE_SB:
style = lv_page_get_style(ta, LV_PAGE_STYLE_SB);
break;
case LV_TA_STYLE_EDGE_FLASH:
style = lv_page_get_style(ta, LV_PAGE_STYLE_EDGE_FLASH);
break;
case LV_TA_STYLE_CURSOR:
style = ext->cursor.style;
break;
default:
style = NULL;
break;
}
return style;
}
/*=====================
* Other functions
*====================*/
/**
* Move the cursor one character right
* @param ta pointer to a text area object
*/
void lv_ta_cursor_right(lv_obj_t * ta)
{
uint16_t cp = lv_ta_get_cursor_pos(ta);
cp++;
lv_ta_set_cursor_pos(ta, cp);
}
/**
* Move the cursor one character left
* @param ta pointer to a text area object
*/
void lv_ta_cursor_left(lv_obj_t * ta)
{
uint16_t cp = lv_ta_get_cursor_pos(ta);
if(cp > 0) {
cp--;
lv_ta_set_cursor_pos(ta, cp);
}
}
/**
* Move the cursor one line down
* @param ta pointer to a text area object
*/
void lv_ta_cursor_down(lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
lv_point_t pos;
/*Get the position of the current letter*/
lv_label_get_letter_pos(ext->label, lv_ta_get_cursor_pos(ta), &pos);
/*Increment the y with one line and keep the valid x*/
lv_style_t * label_style = lv_obj_get_style(ext->label);
const lv_font_t * font_p = label_style->text.font;
lv_coord_t font_h = lv_font_get_height(font_p);
pos.y += font_h + label_style->text.line_space + 1;
pos.x = ext->cursor.valid_x;
/*Do not go below the last line*/
if(pos.y < lv_obj_get_height(ext->label)) {
/*Get the letter index on the new cursor position and set it*/
uint16_t new_cur_pos = lv_label_get_letter_on(ext->label, &pos);
lv_coord_t cur_valid_x_tmp = ext->cursor.valid_x; /*Cursor position set overwrites the valid positon */
lv_ta_set_cursor_pos(ta, new_cur_pos);
ext->cursor.valid_x = cur_valid_x_tmp;
}
}
/**
* Move the cursor one line up
* @param ta pointer to a text area object
*/
void lv_ta_cursor_up(lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
lv_point_t pos;
/*Get the position of the current letter*/
lv_label_get_letter_pos(ext->label, lv_ta_get_cursor_pos(ta), &pos);
/*Decrement the y with one line and keep the valid x*/
lv_style_t * label_style = lv_obj_get_style(ext->label);
const lv_font_t * font = label_style->text.font;
lv_coord_t font_h = lv_font_get_height(font);
pos.y -= font_h + label_style->text.line_space - 1;
pos.x = ext->cursor.valid_x;
/*Get the letter index on the new cursor position and set it*/
uint16_t new_cur_pos = lv_label_get_letter_on(ext->label, &pos);
lv_coord_t cur_valid_x_tmp = ext->cursor.valid_x; /*Cursor position set overwrites the valid positon */
lv_ta_set_cursor_pos(ta, new_cur_pos);
ext->cursor.valid_x = cur_valid_x_tmp;
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Handle the drawing related tasks of the text areas
* @param ta pointer to an object
* @param mask the object will be drawn only in this area
* @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area
* (return 'true' if yes)
* LV_DESIGN_DRAW_MAIN: draw the object (always return 'true')
* LV_DESIGN_DRAW_POST: drawing after every children are drawn
* @param return true/false, depends on 'mode'
*/
static bool lv_ta_design(lv_obj_t * ta, const lv_area_t * mask, lv_design_mode_t mode)
{
if(mode == LV_DESIGN_COVER_CHK) {
/*Return false if the object is not covers the mask_p area*/
return ancestor_design(ta, mask, mode);
} else if(mode == LV_DESIGN_DRAW_MAIN) {
/*Draw the object*/
ancestor_design(ta, mask, mode);
} else if(mode == LV_DESIGN_DRAW_POST) {
ancestor_design(ta, mask, mode);
}
return true;
}
/**
* An extended scrollable design of the page. Calls the normal design function and draws a cursor.
* @param scrl pointer to the scrollable part of the Text area
* @param mask the object will be drawn only in this area
* @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area
* (return 'true' if yes)
* LV_DESIGN_DRAW_MAIN: draw the object (always return 'true')
* LV_DESIGN_DRAW_POST: drawing after every children are drawn
* @return return true/false, depends on 'mode'
*/
static bool lv_ta_scrollable_design(lv_obj_t * scrl, const lv_area_t * mask, lv_design_mode_t mode)
{
if(mode == LV_DESIGN_COVER_CHK) {
/*Return false if the object is not covers the mask_p area*/
return scrl_design(scrl, mask, mode);
} else if(mode == LV_DESIGN_DRAW_MAIN) {
/*Draw the object*/
scrl_design(scrl, mask, mode);
} else if(mode == LV_DESIGN_DRAW_POST) {
scrl_design(scrl, mask, mode);
/*Draw the cursor*/
lv_obj_t * ta = lv_obj_get_parent(scrl);
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
if(ext->cursor.type == LV_CURSOR_NONE ||
(ext->cursor.type & LV_CURSOR_HIDDEN) ||
ext->cursor.state == 0) {
return true; /*The cursor is not visible now*/
}
lv_style_t cur_style;
get_cursor_style(ta, &cur_style);
const char * txt = lv_label_get_text(ext->label);
/*Draw he cursor according to the type*/
lv_area_t cur_area;
lv_area_copy(&cur_area, &ext->cursor.area);
cur_area.x1 += ext->label->coords.x1;
cur_area.y1 += ext->label->coords.y1;
cur_area.x2 += ext->label->coords.x1;
cur_area.y2 += ext->label->coords.y1;
lv_opa_t opa_scale = lv_obj_get_opa_scale(ta);
if(ext->cursor.type == LV_CURSOR_LINE) {
lv_draw_rect(&cur_area, mask, &cur_style, opa_scale);
} else if(ext->cursor.type == LV_CURSOR_BLOCK) {
lv_draw_rect(&cur_area, mask, &cur_style, opa_scale);
#if LV_TXT_UTF8 == 0
char letter_buf[2];
letter_buf[0] = txt[ext->cursor.txt_byte_pos];
letter_buf[1] = '\0';
#else
char letter_buf[8] = {0};
memcpy(letter_buf, &txt[ext->cursor.txt_byte_pos], lv_txt_encoded_size(&txt[ext->cursor.txt_byte_pos]));
#endif
cur_area.x1 += cur_style.body.padding.hor;
cur_area.y1 += cur_style.body.padding.ver;
lv_draw_label(&cur_area, mask, &cur_style, opa_scale, letter_buf, LV_TXT_FLAG_NONE, 0);
} else if(ext->cursor.type == LV_CURSOR_OUTLINE) {
cur_style.body.empty = 1;
if(cur_style.body.border.width == 0) cur_style.body.border.width = 1; /*Be sure the border will be drawn*/
lv_draw_rect(&cur_area, mask, &cur_style, opa_scale);
} else if(ext->cursor.type == LV_CURSOR_UNDERLINE) {
lv_draw_rect(&cur_area, mask, &cur_style, opa_scale);
}
}
return true;
}
/**
* Signal function of the text area
* @param ta pointer to a text area object
* @param sign a signal type from lv_signal_t enum
* @param param pointer to a signal specific variable
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
*/
static lv_res_t lv_ta_signal(lv_obj_t * ta, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = ancestor_signal(ta, sign, param);
if(res != LV_RES_OK) return res;
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
if(sign == LV_SIGNAL_CLEANUP) {
if(ext->pwd_tmp != NULL) lv_mem_free(ext->pwd_tmp);
/* (The created label will be deleted automatically) */
} else if(sign == LV_SIGNAL_STYLE_CHG) {
if(ext->label) {
lv_obj_t * scrl = lv_page_get_scrl(ta);
lv_style_t * style_ta = lv_obj_get_style(ta);
lv_style_t * style_scrl = lv_obj_get_style(scrl);
if(ext->one_line) {
/*In one line mode refresh the Text Area height because 'vpad' can modify it*/
lv_style_t * style_label = lv_obj_get_style(ext->label);
lv_coord_t font_h = lv_font_get_height(style_label->text.font);
lv_obj_set_height(ta, font_h + (style_ta->body.padding.ver + style_scrl->body.padding.ver) * 2);
} else {
/*In not one line mode refresh the Label width because 'hpad' can modify it*/
lv_obj_set_width(ext->label, lv_obj_get_width(scrl) - 2 * style_scrl->body.padding.hor);
lv_obj_set_pos(ext->label, style_scrl->body.padding.hor, style_scrl->body.padding.ver); /*Be sure the Label is in the correct position*/
}
lv_label_set_text(ext->label, NULL);
}
} else if(sign == LV_SIGNAL_CORD_CHG) {
/*Set the label width according to the text area width*/
if(ext->label) {
if(lv_obj_get_width(ta) != lv_area_get_width(param) ||
lv_obj_get_height(ta) != lv_area_get_height(param)) {
lv_obj_t * scrl = lv_page_get_scrl(ta);
lv_style_t * style_scrl = lv_obj_get_style(scrl);
lv_obj_set_width(ext->label, lv_obj_get_width(scrl) - 2 * style_scrl->body.padding.hor);
lv_obj_set_pos(ext->label, style_scrl->body.padding.hor, style_scrl->body.padding.ver);
lv_label_set_text(ext->label, NULL); /*Refresh the label*/
refr_cursor_area(ta);
}
}
} else if(sign == LV_SIGNAL_CONTROLL) {
uint32_t c = *((uint32_t *)param); /*uint32_t because can be UTF-8*/
if(c == LV_GROUP_KEY_RIGHT) lv_ta_cursor_right(ta);
else if(c == LV_GROUP_KEY_LEFT) lv_ta_cursor_left(ta);
else if(c == LV_GROUP_KEY_UP) lv_ta_cursor_up(ta);
else if(c == LV_GROUP_KEY_DOWN) lv_ta_cursor_down(ta);
else if(c == LV_GROUP_KEY_BACKSPACE) lv_ta_del_char(ta);
else if(c == LV_GROUP_KEY_DEL) {
uint16_t cp = lv_ta_get_cursor_pos(ta);
lv_ta_set_cursor_pos(ta, cp + 1);
if(cp != lv_ta_get_cursor_pos(ta)) lv_ta_del_char(ta);
}
else {
lv_ta_add_char(ta, c);
}
} else if(sign == LV_SIGNAL_GET_EDITABLE) {
bool * editable = (bool *)param;
*editable = true;
} else if(sign == LV_SIGNAL_GET_TYPE) {
lv_obj_type_t * buf = param;
uint8_t i;
for(i = 0; i < LV_MAX_ANCESTOR_NUM - 1; i++) { /*Find the last set data*/
if(buf->type[i] == NULL) break;
}
buf->type[i] = "lv_ta";
} else if(sign == LV_SIGNAL_DEFOCUS) {
lv_cursor_type_t cur_type;
cur_type = lv_ta_get_cursor_type(ta);
lv_ta_set_cursor_type(ta, cur_type | LV_CURSOR_HIDDEN);
} else if(sign == LV_SIGNAL_FOCUS) {
#if USE_LV_GROUP
lv_cursor_type_t cur_type;
cur_type = lv_ta_get_cursor_type(ta);
lv_group_t * g = lv_obj_get_group(ta);
bool editing = lv_group_get_editing(g);
lv_hal_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act());
/*Encoders need special handling*/
if(indev_type == LV_INDEV_TYPE_ENCODER) {
if(editing) lv_ta_set_cursor_type(ta, cur_type & (~LV_CURSOR_HIDDEN));
else lv_ta_set_cursor_type(ta, cur_type | LV_CURSOR_HIDDEN);
}
else {
lv_ta_set_cursor_type(ta, cur_type & (~LV_CURSOR_HIDDEN));
}
#endif
}
return res;
}
/**
* Signal function of the scrollable part of the text area
* @param scrl pointer to scrollable part of a text area object
* @param sign a signal type from lv_signal_t enum
* @param param pointer to a signal specific variable
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
*/
static lv_res_t lv_ta_scrollable_signal(lv_obj_t * scrl, lv_signal_t sign, void * param)
{
lv_res_t res;
lv_obj_t * ta = lv_obj_get_parent(scrl);
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
/* Include the ancient signal function */
res = scrl_signal(scrl, sign, param);
if(res != LV_RES_OK) return res;
if(sign == LV_SIGNAL_REFR_EXT_SIZE) {
/*Set ext. size because the cursor might be out of this object*/
lv_style_t * style_label = lv_obj_get_style(ext->label);
lv_coord_t font_h = lv_font_get_height(style_label->text.font);
scrl->ext_size = LV_MATH_MAX(scrl->ext_size, style_label->text.line_space + font_h);
}
#if 0
else if(sign == LV_SIGNAL_CORD_CHG) {
/*Set the label width according to the text area width*/
if(ext->label) {
if(lv_obj_get_width(ta) != lv_area_get_width(param) ||
lv_obj_get_height(ta) != lv_area_get_height(param)) {
lv_obj_t * scrl = lv_page_get_scrl(ta);
lv_style_t * style_scrl = lv_obj_get_style(scrl);
lv_obj_set_width(ext->label, lv_obj_get_width(scrl) - 2 * style_scrl->body.padding.hor);
lv_obj_set_pos(ext->label, style_scrl->body.padding.hor, style_scrl->body.padding.ver);
lv_label_set_text(ext->label, NULL); /*Refresh the label*/
refr_cursor_area(ta);
}
}
}
#endif
return res;
}
#if USE_LV_ANIMATION
/**
* Called to blink the cursor
* @param ta pointer to a text area
* @param hide 1: hide the cursor, 0: show it
*/
static void cursor_blink_anim(lv_obj_t * ta, uint8_t show)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
if(show != ext->cursor.state) {
ext->cursor.state = show == 0 ? 0 : 1;
if(ext->cursor.type != LV_CURSOR_NONE &&
(ext->cursor.type & LV_CURSOR_HIDDEN) == 0)
{
lv_area_t area_tmp;
lv_area_copy(&area_tmp, &ext->cursor.area);
area_tmp.x1 += ext->label->coords.x1;
area_tmp.y1 += ext->label->coords.y1;
area_tmp.x2 += ext->label->coords.x1;
area_tmp.y2 += ext->label->coords.y1;
lv_inv_area(&area_tmp);
}
}
}
/**
* Dummy function to animate char hiding in pwd mode.
* Does nothing, but a function is required in car hiding anim.
* (pwd_char_hider callback do the real job)
* @param ta unused
* @param x unused
*/
static void pwd_char_hider_anim(lv_obj_t * ta, int32_t x)
{
(void)ta;
(void)x;
}
#endif
/**
* Hide all characters (convert them to '*')
* @param ta: pointer to text area object
*/
static void pwd_char_hider(lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
if(ext->pwd_mode != 0) {
char * txt = lv_label_get_text(ext->label);
int16_t len = lv_txt_get_encoded_length(txt);
bool refr = false;
uint16_t i;
for(i = 0; i < len; i++) {
txt[i] = '*';
refr = true;
}
txt[i] = '\0';
if(refr != false) lv_label_set_text(ext->label, txt);
}
}
/**
* Test an unicode character if it is accepted or not. Checks max length and accepted char list.
* @param ta pointer to a test area object
* @param c an unicode character
* @return true: accapted; false: rejected
*/
static bool char_is_accepted(lv_obj_t * ta, uint32_t c)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
/*If no restriction accept it*/
if(ext->accapted_chars == NULL && ext->max_length == 0) return true;
/*Too many characters?*/
if(ext->max_length > 0 &&
lv_txt_get_encoded_length(lv_ta_get_text(ta)) >= ext->max_length) {
return false;
}
/*Accepted character?*/
if(ext->accapted_chars) {
uint32_t i = 0;
uint32_t a;
while(ext->accapted_chars[i] != '\0') {
a = lv_txt_encoded_next(ext->accapted_chars, &i);
if(a == c) return true; /*Accepted*/
}
return false; /*The character wasn't in the list*/
} else {
return true; /*If the accepted char list in not specified the accept the character*/
}
}
static void get_cursor_style(lv_obj_t * ta, lv_style_t * style_res)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
lv_style_t * label_style = lv_obj_get_style(ext->label);
if(ext->cursor.style) {
lv_style_copy(style_res, ext->cursor.style);
} else {
/*If cursor style is not specified then use the modified label style */
lv_style_copy(style_res, label_style);
lv_color_t clv_color_tmp = style_res->text.color; /*Make letter color to cursor color*/
style_res->text.color = style_res->body.main_color; /*In block mode the letter color will be current background color*/
style_res->body.main_color = clv_color_tmp;
style_res->body.grad_color = clv_color_tmp;
style_res->body.border.color = clv_color_tmp;
style_res->body.border.opa = LV_OPA_COVER;
style_res->body.border.width = 1;
style_res->body.shadow.width = 0;
style_res->body.radius = 0;
style_res->body.empty = 0;
style_res->body.padding.hor = 0;
style_res->body.padding.ver = 0;
style_res->line.width = 1;
style_res->body.opa = LV_OPA_COVER;
}
}
static void refr_cursor_area(lv_obj_t * ta)
{
lv_ta_ext_t * ext = lv_obj_get_ext_attr(ta);
lv_style_t * label_style = lv_obj_get_style(ext->label);
lv_style_t cur_style;
get_cursor_style(ta, &cur_style);
uint16_t cur_pos = lv_ta_get_cursor_pos(ta);
const char * txt = lv_label_get_text(ext->label);
uint32_t byte_pos;
#if LV_TXT_UTF8 != 0
byte_pos = lv_txt_encoded_get_byte_id(txt, cur_pos);
uint32_t letter = lv_txt_encoded_next(&txt[byte_pos], NULL);
#else
byte_pos = cur_pos;
uint32_t letter = txt[byte_pos];
#endif
lv_coord_t letter_h = lv_font_get_height(label_style->text.font);
/*Set letter_w (set not 0 on non printable but valid chars)*/
lv_coord_t letter_w;
if(letter == '\0' || letter == '\n' || letter == '\r') {
letter_w = lv_font_get_width(label_style->text.font, ' ');
} else {
letter_w = lv_font_get_width(label_style->text.font, letter);
}
lv_point_t letter_pos;
lv_label_get_letter_pos(ext->label, cur_pos, &letter_pos);
/*If the cursor is out of the text (most right) draw it to the next line*/
if(letter_pos.x + ext->label->coords.x1 + letter_w > ext->label->coords.x2 && ext->one_line == 0 && lv_label_get_align(ext->label) != LV_LABEL_ALIGN_RIGHT) {
letter_pos.x = 0;
letter_pos.y += letter_h + label_style->text.line_space;
if(letter != '\0') {
byte_pos += lv_txt_encoded_size(&txt[byte_pos]);
letter = lv_txt_encoded_next(&txt[byte_pos], NULL);
}
if(letter == '\0' || letter == '\n' || letter == '\r') {
letter_w = lv_font_get_width(label_style->text.font, ' ');
} else {
letter_w = lv_font_get_width(label_style->text.font, letter);
}
}
/*Save the byte position. It is required to draw `LV_CURSOR_BLOCK`*/
ext->cursor.txt_byte_pos = byte_pos;
/*Draw he cursor according to the type*/
lv_area_t cur_area;
if(ext->cursor.type == LV_CURSOR_LINE) {
cur_area.x1 = letter_pos.x + cur_style.body.padding.hor - (cur_style.line.width >> 1) - (cur_style.line.width & 0x1);
cur_area.y1 = letter_pos.y + cur_style.body.padding.ver;
cur_area.x2 = letter_pos.x + cur_style.body.padding.hor + (cur_style.line.width >> 1);
cur_area.y2 = letter_pos.y + cur_style.body.padding.ver + letter_h;
} else if(ext->cursor.type == LV_CURSOR_BLOCK) {
cur_area.x1 = letter_pos.x - cur_style.body.padding.hor;
cur_area.y1 = letter_pos.y - cur_style.body.padding.ver;
cur_area.x2 = letter_pos.x + cur_style.body.padding.hor + letter_w;
cur_area.y2 = letter_pos.y + cur_style.body.padding.ver + letter_h;
} else if(ext->cursor.type == LV_CURSOR_OUTLINE) {
cur_area.x1 = letter_pos.x - cur_style.body.padding.hor;
cur_area.y1 = letter_pos.y - cur_style.body.padding.ver;
cur_area.x2 = letter_pos.x + cur_style.body.padding.hor + letter_w;
cur_area.y2 = letter_pos.y + cur_style.body.padding.ver + letter_h;
} else if(ext->cursor.type == LV_CURSOR_UNDERLINE) {
cur_area.x1 = letter_pos.x + cur_style.body.padding.hor;
cur_area.y1 = letter_pos.y + cur_style.body.padding.ver + letter_h - (cur_style.line.width >> 1);
cur_area.x2 = letter_pos.x + cur_style.body.padding.hor + letter_w;
cur_area.y2 = letter_pos.y + cur_style.body.padding.ver + letter_h + (cur_style.line.width >> 1) + (cur_style.line.width & 0x1);
}
/*Save the new area*/
lv_area_t area_tmp;
lv_area_copy(&area_tmp, &ext->cursor.area);
area_tmp.x1 += ext->label->coords.x1;
area_tmp.y1 += ext->label->coords.y1;
area_tmp.x2 += ext->label->coords.x1;
area_tmp.y2 += ext->label->coords.y1;
lv_inv_area(&area_tmp);
lv_area_copy(&ext->cursor.area, &cur_area);
lv_area_copy(&area_tmp, &ext->cursor.area);
area_tmp.x1 += ext->label->coords.x1;
area_tmp.y1 += ext->label->coords.y1;
area_tmp.x2 += ext->label->coords.x1;
area_tmp.y2 += ext->label->coords.y1;
lv_inv_area(&area_tmp);
}
#endif
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