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feat(spinbox ) add function to set cursor to specific position (#2314)

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* Spinbox set cursor to specific position (funct.)

* changed exp10 to lv_pow(10

* Update lv_spinbox.c

resolved indentation

* Update spinbox.md

Added lv_spinbox_set_pos description

Co-authored-by: Sebastian Dyker <sebastian.dyker@walther-systemtechnik.com>
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dyktronix 2021-06-17 13:43:19 +02:00 committed by GitHub
parent 428db9494d
commit 7066c8fbbb
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2
docs/widgets/extra/spinbox.md
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@ -20,6 +20,8 @@ The parts of the Spinbox are identical to the [Text area](/widgets/core/textarea
`lv_spinbox_set_step(spinbox, 100)` sets which digits to change on increment/decrement. Only multiples of ten can be set, and not for example 3.
`lv_spinbox_set_pos(spinbox, 1)` sets the cursor to a specific digit to change on increment/decrement. For example position '0' sets the cursor to the least significant digit.
### Format
`lv_spinbox_set_digit_format(spinbox, digit_count, separator_position)` sets the number format. `digit_count` is the number of digits excluding the decimal separator and the sign.

17
src/extra/widgets/spinbox/lv_spinbox.c
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@ -145,6 +145,23 @@ void lv_spinbox_set_range(lv_obj_t * obj, int32_t range_min, int32_t range_max)
lv_spinbox_updatevalue(obj);
}
/**
* Set cursor position to a specific digit for edition
* @param spinbox pointer to spinbox
* @param pos selected position in spinbox
*/
void lv_spinbox_set_pos(lv_obj_t * obj, uint8_t pos)
{
lv_spinbox_t * spinbox = (lv_spinbox_t *)obj;
int32_t step_limit;
step_limit = LV_MAX(spinbox->range_max, (spinbox->range_min < 0 ? (-spinbox->range_min) : spinbox->range_min));
int32_t new_step = spinbox->step * lv_pow(10, pos);
if(pos <= 0) spinbox->step = 1;
else if(new_step <= step_limit) spinbox->step = new_step;
lv_spinbox_updatevalue(obj);
}
/*=====================
* Getter functions
*====================*/

6
src/extra/widgets/spinbox/lv_spinbox.h
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@ -99,6 +99,12 @@ void lv_spinbox_set_step(lv_obj_t * obj, uint32_t step);
*/
void lv_spinbox_set_range(lv_obj_t * obj, int32_t range_min, int32_t range_max);
/**
* Set cursor position to a specific digit for edition
* @param spinbox pointer to spinbox
* @param pos selected position in spinbox
*/
void lv_spinbox_set_pos(lv_obj_t * obj, uint8_t pos);
/*=====================
* Getter functions
*====================*/