lv_bidi_private.h

API reference for lv_bidi_private.h

Summary

Functions

Get the logical position of a character in a line

uint16_t lv_bidi_get_logical_pos(const char *str_in, char **bidi_txt, uint32_t len, lv_base_dir_t base_dir, uint32_t visual_pos, bool *is_rtl)

Name	Type	Description
`str_in`	`const char *`	the input string. Can be only one line.
`bidi_txt`	`char **`	internally the text is bidi processed which buffer can be get here. If not required anymore has to freed with `lv_free()` Can be `NULL` is unused
`len`	`uint32_t`	length of the line in character count
`base_dir`	`lv_base_dir_t`	base direction of the text: `LV_BASE_DIR_LTR` or `LV_BASE_DIR_RTL`
`visual_pos`	`uint32_t`	the visual character position which logical position should be get
`is_rtl`	`bool *`	tell the char at `visual_pos` is RTL or LTR context

Returns: uint16_t — the logical character position

Get the visual position of a character in a line

uint16_t lv_bidi_get_visual_pos(const char *str_in, char **bidi_txt, uint16_t len, lv_base_dir_t base_dir, uint32_t logical_pos, bool *is_rtl)

Name	Type	Description
`str_in`	`const char *`	the input string. Can be only one line.
`bidi_txt`	`char **`	internally the text is bidi processed which buffer can be get here. If not required anymore has to freed with `lv_free()` Can be `NULL` is unused
`len`	`uint16_t`	length of the line in character count
`base_dir`	`lv_base_dir_t`	base direction of the text: `LV_BASE_DIR_LTR` or `LV_BASE_DIR_RTL`
`logical_pos`	`uint32_t`	the logical character position which visual position should be get
`is_rtl`	`bool *`	tell the char at `logical_pos` is RTL or LTR context

Returns: uint16_t — the visual character position

Indirect dependencies