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Position cursor at the position at which lv_ta was clicked

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This commit is contained in:
MiSimon 2019-02-02 00:19:18 +01:00
parent 84781c62c2
commit dc9cffec5d
1 changed files with 59 additions and 0 deletions
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59
lv_objx/lv_ta.c
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@ -53,6 +53,7 @@ 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 lv_res_t label_signal_wrapper(lv_obj_t * ta, lv_signal_t sign, void * param);
/**********************
* STATIC VARIABLES
@ -61,6 +62,7 @@ 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;
static lv_signal_func_t label_signal_original;
/**********************
* MACROS
@ -153,6 +155,11 @@ lv_obj_t * lv_ta_create(lv_obj_t * par, const lv_obj_t * copy)
lv_obj_refresh_style(new_ta);
}
/*Wrap the labels signal function and make it clickable*/
if(label_signal_original) label_signal_original = lv_obj_get_signal_func(ext->label);
lv_obj_set_signal_func(ext->label, label_signal_wrapper);
lv_obj_set_click(ext->label, true);
#if USE_LV_ANIMATION
/*Create a cursor blinker animation*/
lv_anim_t a;
@ -1090,7 +1097,36 @@ static lv_res_t lv_ta_signal(lv_obj_t * ta, lv_signal_t sign, void * param)
lv_ta_set_cursor_type(ta, cur_type & (~LV_CURSOR_HIDDEN));
}
#endif
} else if(sign == LV_SIGNAL_PRESSED) {
lv_indev_t * indev = (lv_indev_t *)param;
lv_area_t label_coords;
uint16_t index_of_char_at_position;
lv_obj_get_coords(ext->label, &label_coords);
lv_point_t relative_position = {
indev->proc.act_point.x - label_coords.x1,
indev->proc.act_point.y - label_coords.y1
};
lv_coord_t label_width = lv_obj_get_width(ext->label);
/*Check if the click happend on the left side of the area ouside the label*/
if (relative_position.x < 0) {
index_of_char_at_position = 0;
}
/*Check if the click happend on the right side of the area ouside the label*/
else if (relative_position.x >= label_width) {
index_of_char_at_position = LV_TA_CURSOR_LAST;
}
else {
index_of_char_at_position = lv_label_get_letter_on(ext->label, &relative_position);
}
lv_ta_set_cursor_pos(ta, index_of_char_at_position);
}
return res;
}
@ -1345,4 +1381,27 @@ static void refr_cursor_area(lv_obj_t * ta)
lv_inv_area(&area_tmp);
}
static lv_res_t label_signal_wrapper(lv_obj_t * label, lv_signal_t sign, void * param)
{
if(sign == LV_SIGNAL_PRESSED) {
lv_obj_t * parent;
parent = lv_obj_get_parent(label);
/*Get the parent (ta) of the parent (scrl part)*/
parent = parent ? lv_obj_get_parent(parent) : NULL;
/*Forward the pressed event to the parent, which is the ta*/
if(parent) {
lv_signal_func_t parent_signal = lv_obj_get_signal_func(parent);
if(parent_signal) {
if(parent_signal(parent, sign, param) != LV_RES_OK) return LV_RES_INV;
}
}
}
if(label_signal_original) return label_signal_original(label, sign, param);
return LV_RES_OK;
}
#endif