github-code/lvgl
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

linemeter: angle offset fixes

Browse Source 
rename lv_lmeter_set_angle to lv_lmeter_set_angle_offset
add lv_lemeter_get_angle_offset
initialze ext->angle_ofs in lv_lmeter_create
This commit is contained in:
Gabor Kiss-Vamosi
2019-11-16 11:27:35 +01:00
parent 3452e60ec1
commit 59743f7f90
2 changed files with 29 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
src/lv_objx/lv_lmeter.c
View File

@@ -76,6 +76,7 @@ lv_obj_t * lv_lmeter_create(lv_obj_t * par, const lv_obj_t * copy)
ext->cur_value = 0;
ext->line_cnt = 21; /*Odd scale number looks better*/
ext->scale_angle = 240; /*(scale_num - 1) * N looks better */
ext->angle_ofs = 0;
/*The signal and design functions are not copied so set them here*/
lv_obj_set_signal_cb(new_lmeter, lv_lmeter_signal);
@@ -178,16 +179,16 @@ void lv_lmeter_set_scale(lv_obj_t * lmeter, uint16_t angle, uint8_t line_cnt)
}
/**
* Set the angle settings of a line meter
* Set the set an offset for the line meter's angles to rotate it.
* @param lmeter pointer to a line meter object
* @param angle angle where the meter will be facing (with its center)
*/
void lv_lmeter_set_angle(lv_obj_t * lmeter, uint16_t angle)
void lv_lmeter_set_angle_offset(lv_obj_t * lmeter, uint16_t angle)
{
lv_lmeter_ext_t * ext = lv_obj_get_ext_attr(lmeter);
if(ext->angle == angle) return;
if(ext->angle_ofs == angle) return;
ext->angle = angle;
ext->angle_ofs = angle;
lv_obj_invalidate(lmeter);
}
@@ -251,7 +252,7 @@ uint8_t lv_lmeter_get_line_count(const lv_obj_t * lmeter)
/**
* Get the scale angle of a line meter
* @param lmeter pointer to a line meter object
* @return angle of the scale
* @return angle_ofs of the scale
*/
uint16_t lv_lmeter_get_scale_angle(const lv_obj_t * lmeter)
{
@@ -261,6 +262,17 @@ uint16_t lv_lmeter_get_scale_angle(const lv_obj_t * lmeter)
return ext->scale_angle;
}
/**
* get the set an offset for the line meter.
* @param lmeter pointer to a line meter object
* @return angle offset (0..360)
*/
uint16_t lv_lmeter_get_angle_offset(lv_obj_t * lmeter)
{
lv_lmeter_ext_t * ext = lv_obj_get_ext_attr(lmeter);
return ext->angle_ofs;
}
/**********************
* STATIC FUNCTIONS
**********************/
@@ -302,7 +314,7 @@ 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 = ext->angle + 90 + (360 - ext->scale_angle) / 2;
int16_t angle_ofs = ext->angle_ofs + 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;

15
src/lv_objx/lv_lmeter.h
View File

@@ -36,7 +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 angle;
uint16_t angle_ofs;
uint8_t line_cnt; /*Count of lines */
int16_t cur_value;
int16_t min_value;
@@ -90,11 +90,11 @@ 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
* Set the set an offset for the line meter's angles to rotate it.
* @param lmeter pointer to a line meter object
* @param angle angle of rotation (relative to the northen axis)
* @param angle angle offset (0..360), rotates clockwise
*/
void lv_lmeter_set_angle(lv_obj_t * lmeter, uint16_t angle);
void lv_lmeter_set_angle_offset(lv_obj_t * lmeter, uint16_t angle);
/**
* Set the styles of a line meter
@@ -147,6 +147,13 @@ uint8_t lv_lmeter_get_line_count(const lv_obj_t * lmeter);
*/
uint16_t lv_lmeter_get_scale_angle(const lv_obj_t * lmeter);
/**
* get the set an offset for the line meter.
* @param lmeter pointer to a line meter object
* @return angle offset (0..360)
*/
uint16_t lv_lmeter_get_angle_offset(lv_obj_t * lmeter);
/**
* Get the style of a line meter
* @param lmeter pointer to a line meter object