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Added rotation feature to the lmeter

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This commit is contained in:
Mattia Maldini 2019-11-12 13:07:26 +01:00
parent 74254975cd
commit 3cd2120b60
2 changed files with 24 additions and 1 deletions
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17
src/lv_objx/lv_lmeter.c
View File

@ -168,6 +168,21 @@ void lv_lmeter_set_scale(lv_obj_t * lmeter, uint16_t angle, uint8_t line_cnt)
lv_obj_invalidate(lmeter);
}
/**
* Set the rotation settings of a line meter
* @param lmeter pointer to a line meter object
* @param angle angle of rotation (relative to the northen axis)
*/
void lv_lmeter_set_rotation(lv_obj_t * lmeter, uint16_t angle)
{
lv_lmeter_ext_t * ext = lv_obj_get_ext_attr(lmeter);
if(ext->rotation == angle) return;
ext->rotation = angle;
lv_obj_invalidate(lmeter);
}
/*=====================
* Getter functions
*====================*/
@ -268,7 +283,7 @@ static bool lv_lmeter_design(lv_obj_t * lmeter, const lv_area_t * mask, lv_desig
lv_coord_t x_ofs = lv_obj_get_width(lmeter) / 2 + lmeter->coords.x1;
lv_coord_t y_ofs = lv_obj_get_height(lmeter) / 2 + lmeter->coords.y1;
int16_t angle_ofs = 90 + (360 - ext->scale_angle) / 2;
int16_t angle_ofs = ext->rotation + 90 + (360 - ext->scale_angle) / 2;
int16_t level =
(int32_t)((int32_t)(ext->cur_value - ext->min_value) * ext->line_cnt) / (ext->max_value - ext->min_value);
uint8_t i;

8
src/lv_objx/lv_lmeter.h
View File

@ -36,6 +36,7 @@ typedef struct
/*No inherited ext.*/ /*Ext. of ancestor*/
/*New data for this type */
uint16_t scale_angle; /*Angle of the scale in deg. (0..360)*/
uint16_t rotation;
uint8_t line_cnt; /*Count of lines */
int16_t cur_value;
int16_t min_value;
@ -88,6 +89,13 @@ void lv_lmeter_set_range(lv_obj_t * lmeter, int16_t min, int16_t max);
*/
void lv_lmeter_set_scale(lv_obj_t * lmeter, uint16_t angle, uint8_t line_cnt);
/**
* Set the rotation settings of a line meter
* @param lmeter pointer to a line meter object
* @param angle angle of rotation (relative to the northen axis)
*/
void lv_lmeter_set_rotation(lv_obj_t * lmeter, uint16_t angle);
/**
* Set the styles of a line meter
* @param lmeter pointer to a line meter object