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Merge 24588d08b6 into dev

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github-actions[bot]
2021-03-16 15:59:26 +00:00
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parent 3dbc170d4b 24588d08b6
commit 931d647d40
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244
src/lv_widgets/lv_led.c
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@@ -1,244 +0,0 @@
/**
* @file lv_led.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_led.h"
#if LV_USE_LED != 0
#include "../lv_misc/lv_debug.h"
#include "../lv_themes/lv_theme.h"
#include "../lv_draw/lv_draw.h"
/*********************
* DEFINES
*********************/
#define LV_OBJX_NAME "lv_led"
#define LV_LED_WIDTH_DEF (LV_DPI / 3)
#define LV_LED_HEIGHT_DEF (LV_DPI / 3)
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static lv_design_res_t lv_led_design(lv_obj_t * led, const lv_area_t * clip_area, lv_design_mode_t mode);
static lv_res_t lv_led_signal(lv_obj_t * led, lv_signal_t sign, void * param);
/**********************
* STATIC VARIABLES
**********************/
static lv_design_cb_t ancestor_design;
static lv_signal_cb_t ancestor_signal;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Create a led objects
* @param par pointer to an object, it will be the parent of the new led
* @param copy pointer to a led object, if not NULL then the new object will be copied from it
* @return pointer to the created led
*/
lv_obj_t * lv_led_create(lv_obj_t * par, const lv_obj_t * copy)
{
LV_LOG_TRACE("led create started");
/*Create the ancestor basic object*/
lv_obj_t * led = lv_obj_create(par, copy);
LV_ASSERT_MEM(led);
if(led == NULL) return NULL;
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_cb(led);
if(ancestor_design == NULL) ancestor_design = lv_obj_get_design_cb(led);
/*Allocate the object type specific extended data*/
lv_led_ext_t * ext = lv_obj_allocate_ext_attr(led, sizeof(lv_led_ext_t));
LV_ASSERT_MEM(ext);
if(ext == NULL) {
lv_obj_del(led);
return NULL;
}
ext->bright = LV_LED_BRIGHT_MAX;
lv_obj_set_signal_cb(led, lv_led_signal);
lv_obj_set_design_cb(led, lv_led_design);
/*Init the new led object*/
if(copy == NULL) {
lv_obj_set_size(led, LV_LED_WIDTH_DEF, LV_LED_HEIGHT_DEF);
lv_theme_apply(led, LV_THEME_LED);
}
/*Copy an existing object*/
else {
lv_led_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
ext->bright = copy_ext->bright;
/*Refresh the style with new signal function*/
lv_obj_refresh_style(led, LV_OBJ_PART_ALL, LV_STYLE_PROP_ALL);
}
LV_LOG_INFO("led created");
return led;
}
/*=====================
* Setter functions
*====================*/
/**
* Set the brightness of a LED object
* @param led pointer to a LED object
* @param bright LV_LED_BRIGHT_MIN (max. dark) ... LV_LED_BRIGHT_MAX (max. light)
*/
void lv_led_set_bright(lv_obj_t * led, uint8_t bright)
{
LV_ASSERT_OBJ(led, LV_OBJX_NAME);
/*Set the brightness*/
lv_led_ext_t * ext = lv_obj_get_ext_attr(led);
if(ext->bright == bright) return;
if(bright <= LV_LED_BRIGHT_MIN) bright = LV_LED_BRIGHT_MIN;
if(bright >= LV_LED_BRIGHT_MAX) bright = LV_LED_BRIGHT_MAX;
ext->bright = bright;
/*Invalidate the object there fore it will be redrawn*/
lv_obj_invalidate(led);
}
/**
* Light on a LED
* @param led pointer to a LED object
*/
void lv_led_on(lv_obj_t * led)
{
LV_ASSERT_OBJ(led, LV_OBJX_NAME);
lv_led_set_bright(led, LV_LED_BRIGHT_MAX);
}
/**
* Light off a LED
* @param led pointer to a LED object
*/
void lv_led_off(lv_obj_t * led)
{
LV_ASSERT_OBJ(led, LV_OBJX_NAME);
lv_led_set_bright(led, LV_LED_BRIGHT_MIN);
}
/**
* Toggle the state of a LED
* @param led pointer to a LED object
*/
void lv_led_toggle(lv_obj_t * led)
{
LV_ASSERT_OBJ(led, LV_OBJX_NAME);
uint8_t bright = lv_led_get_bright(led);
if(bright > (LV_LED_BRIGHT_MIN + LV_LED_BRIGHT_MAX) >> 1)
lv_led_off(led);
else
lv_led_on(led);
}
/*=====================
* Getter functions
*====================*/
/**
* Get the brightness of a LEd object
* @param led pointer to LED object
* @return bright 0 (max. dark) ... 255 (max. light)
*/
uint8_t lv_led_get_bright(const lv_obj_t * led)
{
LV_ASSERT_OBJ(led, LV_OBJX_NAME);
lv_led_ext_t * ext = lv_obj_get_ext_attr(led);
return ext->bright;
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Handle the drawing related tasks of the leds
* @param led pointer to an object
* @param clip_area the object will be drawn only in this area
* @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area
* (return 'true' if yes)
* LV_DESIGN_DRAW: draw the object (always return 'true')
* LV_DESIGN_DRAW_POST: drawing after every children are drawn
* @param return an element of `lv_design_res_t`
*/
static lv_design_res_t lv_led_design(lv_obj_t * led, const lv_area_t * clip_area, lv_design_mode_t mode)
{
if(mode == LV_DESIGN_COVER_CHK) {
/*Return false if the object is not covers the clip_area area*/
return ancestor_design(led, clip_area, mode);
}
else if(mode == LV_DESIGN_DRAW_MAIN) {
/*Make darker colors in a temporary style according to the brightness*/
lv_led_ext_t * ext = lv_obj_get_ext_attr(led);
lv_draw_rect_dsc_t rect_dsc;
lv_draw_rect_dsc_init(&rect_dsc);
lv_obj_init_draw_rect_dsc(led, LV_LED_PART_MAIN, &rect_dsc);
/*Mix. the color with black proportionally with brightness*/
rect_dsc.bg_color = lv_color_mix(rect_dsc.bg_color, LV_COLOR_BLACK, ext->bright);
rect_dsc.bg_grad_color = lv_color_mix(rect_dsc.bg_grad_color, LV_COLOR_BLACK, ext->bright);
rect_dsc.border_color = lv_color_mix(rect_dsc.border_color, LV_COLOR_BLACK, ext->bright);
rect_dsc.shadow_color = lv_color_mix(rect_dsc.shadow_color, LV_COLOR_BLACK, ext->bright);
/*Set the current shadow width according to brightness proportionally between LV_LED_BRIGHT_OFF
* and LV_LED_BRIGHT_ON*/
rect_dsc.shadow_width = ((ext->bright - LV_LED_BRIGHT_MIN) * rect_dsc.shadow_width) /
(LV_LED_BRIGHT_MAX - LV_LED_BRIGHT_MIN);
rect_dsc.shadow_spread = ((ext->bright - LV_LED_BRIGHT_MIN) * rect_dsc.shadow_spread) /
(LV_LED_BRIGHT_MAX - LV_LED_BRIGHT_MIN);
lv_draw_rect(&led->coords, clip_area, &rect_dsc);
}
return LV_DESIGN_RES_OK;
}
/**
* Signal function of the led
* @param led pointer to a led object
* @param sign a signal type from lv_signal_t enum
* @param param pointer to a signal specific variable
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
*/
static lv_res_t lv_led_signal(lv_obj_t * led, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = ancestor_signal(led, sign, param);
if(res != LV_RES_OK) return res;
if(sign == LV_SIGNAL_GET_TYPE) return lv_obj_handle_get_type_signal(param, LV_OBJX_NAME);
return res;
}
#endif

593
src/lv_widgets/lv_spinbox.c
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@@ -1,593 +0,0 @@
/**
* @file lv_spinbox.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_spinbox.h"
#if LV_USE_SPINBOX != 0
#include "../lv_misc/lv_debug.h"
#include "../lv_themes/lv_theme.h"
#include "../lv_misc/lv_math.h"
#include "../lv_misc/lv_utils.h"
/*********************
* DEFINES
*********************/
#define LV_OBJX_NAME "lv_spinbox"
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static lv_res_t lv_spinbox_signal(lv_obj_t * spinbox, lv_signal_t sign, void * param);
static lv_style_list_t * lv_spinbox_get_style(lv_obj_t * ta, uint8_t part);
static void lv_spinbox_updatevalue(lv_obj_t * spinbox);
/**********************
* STATIC VARIABLES
**********************/
static lv_signal_cb_t ancestor_signal;
static lv_design_cb_t ancestor_design;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Create a spinbox object
* @param par pointer to an object, it will be the parent of the new spinbox
* @param copy pointer to a spinbox object, if not NULL then the new object will be copied from it
* @return pointer to the created spinbox
*/
lv_obj_t * lv_spinbox_create(lv_obj_t * par, const lv_obj_t * copy)
{
LV_LOG_TRACE("spinbox create started");
/*Create the ancestor of spinbox*/
lv_obj_t * spinbox = lv_textarea_create(par, copy);
LV_ASSERT_MEM(spinbox);
if(spinbox == NULL) return NULL;
/*Allocate the spinbox type specific extended data*/
lv_spinbox_ext_t * ext = lv_obj_allocate_ext_attr(spinbox, sizeof(lv_spinbox_ext_t));
LV_ASSERT_MEM(ext);
if(ext == NULL) {
lv_obj_del(spinbox);
return NULL;
}
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_cb(spinbox);
if(ancestor_design == NULL) ancestor_design = lv_obj_get_design_cb(spinbox);
/*Initialize the allocated 'ext'*/
ext->value = 0;
ext->dec_point_pos = 0;
ext->digit_count = 5;
ext->digit_padding_left = 0;
ext->step = 1;
ext->range_max = 99999;
ext->range_min = -99999;
ext->rollover = false;
/*The signal and design functions are not copied so set them here*/
lv_obj_set_signal_cb(spinbox, lv_spinbox_signal);
lv_obj_set_design_cb(spinbox, ancestor_design); /*Leave the Text area's design function*/
/*Init the new spinbox*/
if(copy == NULL) {
/* No scrolling will happen here so make the scrollable non-clickable
* It allows to handle input events in the bg object only.*/
lv_obj_set_click(lv_page_get_scrollable(spinbox), false);
lv_textarea_set_one_line(spinbox, true);
lv_textarea_set_cursor_click_pos(spinbox, true);
lv_obj_set_width(spinbox, LV_DPI);
lv_theme_apply(spinbox, LV_THEME_SPINBOX);
}
/*Copy an existing spinbox*/
else {
lv_spinbox_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
lv_spinbox_set_value(spinbox, copy_ext->value);
lv_spinbox_set_digit_format(spinbox, (uint8_t)copy_ext->digit_count, (uint8_t)copy_ext->dec_point_pos);
lv_spinbox_set_range(spinbox, copy_ext->range_min, copy_ext->range_max);
lv_spinbox_set_step(spinbox, copy_ext->step);
lv_spinbox_set_rollover(spinbox, copy_ext->rollover);
/*Refresh the style with new signal function*/
lv_obj_refresh_style(spinbox, LV_OBJ_PART_ALL, LV_STYLE_PROP_ALL);
}
lv_spinbox_updatevalue(spinbox);
LV_LOG_INFO("spinbox created");
return spinbox;
}
/*=====================
* Setter functions
*====================*/
/**
* Set spinbox rollover function
* @param spinbox pointer to spinbox
* @param b true or false to enable or disable (default)
*/
void lv_spinbox_set_rollover(lv_obj_t * spinbox, bool b)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
ext->rollover = b;
}
/**
* Set spinbox value
* @param spinbox pointer to spinbox
* @param i value to be set
*/
void lv_spinbox_set_value(lv_obj_t * spinbox, int32_t i)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
if(ext == NULL) return;
if(i > ext->range_max) i = ext->range_max;
if(i < ext->range_min) i = ext->range_min;
ext->value = i;
lv_spinbox_updatevalue(spinbox);
}
/**
* Set spinbox digit format (digit count and decimal format)
* @param spinbox pointer to spinbox
* @param digit_count number of digit excluding the decimal separator and the sign
* @param separator_position number of digit before the decimal point. If 0, decimal point is not
* shown
*/
void lv_spinbox_set_digit_format(lv_obj_t * spinbox, uint8_t digit_count, uint8_t separator_position)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
if(ext == NULL) return;
if(digit_count > LV_SPINBOX_MAX_DIGIT_COUNT) digit_count = LV_SPINBOX_MAX_DIGIT_COUNT;
if(separator_position >= digit_count) separator_position = 0;
if(separator_position > LV_SPINBOX_MAX_DIGIT_COUNT) separator_position = LV_SPINBOX_MAX_DIGIT_COUNT;
if(digit_count < LV_SPINBOX_MAX_DIGIT_COUNT) {
int64_t max_val = _lv_pow(10, digit_count);
if(ext->range_max > max_val - 1) ext->range_max = max_val - 1;
if(ext->range_min < - max_val + 1) ext->range_min = - max_val + 1;
}
ext->digit_count = digit_count;
ext->dec_point_pos = separator_position;
lv_spinbox_updatevalue(spinbox);
}
/**
* Set spinbox step
* @param spinbox pointer to spinbox
* @param step steps on increment/decrement
*/
void lv_spinbox_set_step(lv_obj_t * spinbox, uint32_t step)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
if(ext == NULL) return;
ext->step = step;
lv_spinbox_updatevalue(spinbox);
}
/**
* Set spinbox value range
* @param spinbox pointer to spinbox
* @param range_min maximum value, inclusive
* @param range_max minimum value, inclusive
*/
void lv_spinbox_set_range(lv_obj_t * spinbox, int32_t range_min, int32_t range_max)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
if(ext == NULL) return;
ext->range_max = range_max;
ext->range_min = range_min;
if(ext->value > ext->range_max) {
ext->value = ext->range_max;
lv_obj_invalidate(spinbox);
}
if(ext->value < ext->range_min) {
ext->value = ext->range_min;
lv_obj_invalidate(spinbox);
}
lv_spinbox_updatevalue(spinbox);
}
/**
* Set spinbox left padding in digits count (added between sign and first digit)
* @param spinbox pointer to spinbox
* @param cb Callback function called on value change event
*/
void lv_spinbox_set_padding_left(lv_obj_t * spinbox, uint8_t padding)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
ext->digit_padding_left = padding;
lv_spinbox_updatevalue(spinbox);
}
/*=====================
* Getter functions
*====================*/
/**
* Get spinbox rollover function status
* @param spinbox pointer to spinbox
*/
bool lv_spinbox_get_rollover(lv_obj_t * spinbox)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
return ext->rollover;
}
/**
* Get the spinbox numeral value (user has to convert to float according to its digit format)
* @param spinbox pointer to spinbox
* @return value integer value of the spinbox
*/
int32_t lv_spinbox_get_value(lv_obj_t * spinbox)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
return ext->value;
}
/*=====================
* Other functions
*====================*/
/**
* Select next lower digit for edition
* @param spinbox pointer to spinbox
*/
void lv_spinbox_step_next(lv_obj_t * spinbox)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
int32_t new_step = ext->step / 10;
if((new_step) > 0)
ext->step = new_step;
else
ext->step = 1;
lv_spinbox_updatevalue(spinbox);
}
/**
* Select next higher digit for edition
* @param spinbox pointer to spinbox
*/
void lv_spinbox_step_prev(lv_obj_t * spinbox)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
int32_t step_limit;
step_limit = LV_MATH_MAX(ext->range_max, (ext->range_min < 0 ? (-ext->range_min) : ext->range_min));
int32_t new_step = ext->step * 10;
if(new_step <= step_limit) ext->step = new_step;
lv_spinbox_updatevalue(spinbox);
}
/**
* Increment spinbox value by one step
* @param spinbox pointer to spinbox
*/
void lv_spinbox_increment(lv_obj_t * spinbox)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
if(ext->value + ext->step <= ext->range_max) {
/*Special mode when zero crossing*/
if((ext->value + ext->step) > 0 && ext->value < 0) ext->value = -ext->value;
ext->value += ext->step;
}
else {
// Rollover?
if((ext->rollover) && (ext->value == ext->range_max))
ext->value = ext->range_min;
else
ext->value = ext->range_max;
}
lv_spinbox_updatevalue(spinbox);
}
/**
* Decrement spinbox value by one step
* @param spinbox pointer to spinbox
*/
void lv_spinbox_decrement(lv_obj_t * spinbox)
{
LV_ASSERT_OBJ(spinbox, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
if(ext->value - ext->step >= ext->range_min) {
/*Special mode when zero crossing*/
if((ext->value - ext->step) < 0 && ext->value > 0) ext->value = -ext->value;
ext->value -= ext->step;
}
else {
// Rollover?
if((ext->rollover) && (ext->value == ext->range_min))
ext->value = ext->range_max;
else
ext->value = ext->range_min;
}
lv_spinbox_updatevalue(spinbox);
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Signal function of the spinbox
* @param spinbox pointer to a spinbox object
* @param sign a signal type from lv_signal_t enum
* @param param pointer to a signal specific variable
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
*/
static lv_res_t lv_spinbox_signal(lv_obj_t * spinbox, lv_signal_t sign, void * param)
{
lv_res_t res = LV_RES_OK;
if(sign == LV_SIGNAL_GET_STYLE) {
lv_get_style_info_t * info = param;
info->result = lv_spinbox_get_style(spinbox, info->part);
if(info->result != NULL) return LV_RES_OK;
else return ancestor_signal(spinbox, sign, param);
}
/* Include the ancient signal function */
if(sign != LV_SIGNAL_CONTROL) {
res = ancestor_signal(spinbox, sign, param);
if(res != LV_RES_OK) return res;
}
if(sign == LV_SIGNAL_GET_TYPE) return lv_obj_handle_get_type_signal(param, LV_OBJX_NAME);
if(sign == LV_SIGNAL_CLEANUP) {
/*Nothing to cleanup. (No dynamically allocated memory in 'ext')*/
}
else if(sign == LV_SIGNAL_RELEASED) {
/*If released with an ENCODER then move to the next digit*/
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
lv_indev_t * indev = lv_indev_get_act();
if(lv_indev_get_type(indev) == LV_INDEV_TYPE_ENCODER) {
#if LV_USE_GROUP
if(lv_group_get_editing(lv_obj_get_group(spinbox))) {
if(ext->step > 1) {
lv_spinbox_step_next(spinbox);
}
else {
/*Restart from the MSB*/
ext->step = 1;
uint32_t i;
for(i = 0; i < ext->digit_count; i++) {
int32_t new_step = ext->step * 10;
if(new_step >= ext->range_max) break;
ext->step = new_step;
}
lv_spinbox_step_prev(spinbox);
}
}
#endif
}
else {
/*The cursor has been positioned to a digit.
* Set `step` accordingly*/
const char * txt = lv_textarea_get_text(spinbox);
size_t txt_len = strlen(txt);
if(txt[ext->ta.cursor.pos] == '.') {
lv_textarea_cursor_left(spinbox);
}
else if(ext->ta.cursor.pos == (uint32_t)txt_len) {
lv_textarea_set_cursor_pos(spinbox, txt_len - 1);
}
else if(ext->ta.cursor.pos == 0 && ext->range_min < 0) {
lv_textarea_set_cursor_pos(spinbox, 1);
}
size_t len = ext->digit_count - 1;
uint16_t cp = ext->ta.cursor.pos;
if(ext->ta.cursor.pos > ext->dec_point_pos && ext->dec_point_pos != 0) cp--;
uint32_t pos = len - cp;
if(ext->range_min < 0) pos++;
ext->step = 1;
uint16_t i;
for(i = 0; i < pos; i++) ext->step *= 10;
}
}
else if(sign == LV_SIGNAL_CONTROL) {
#if LV_USE_GROUP
lv_indev_type_t indev_type = lv_indev_get_type(lv_indev_get_act());
uint32_t c = *((uint32_t *)param); /*uint32_t because can be UTF-8*/
if(c == LV_KEY_RIGHT) {
if(indev_type == LV_INDEV_TYPE_ENCODER)
lv_spinbox_increment(spinbox);
else
lv_spinbox_step_next(spinbox);
}
else if(c == LV_KEY_LEFT) {
if(indev_type == LV_INDEV_TYPE_ENCODER)
lv_spinbox_decrement(spinbox);
else
lv_spinbox_step_prev(spinbox);
}
else if(c == LV_KEY_UP) {
lv_spinbox_increment(spinbox);
}
else if(c == LV_KEY_DOWN) {
lv_spinbox_decrement(spinbox);
}
else {
lv_textarea_add_char(spinbox, c);
}
#endif
}
return res;
}
/**
* Get the style descriptor of a part of the object
* @param page pointer the object
* @param part the part from `lv_spinbox_part_t`. (LV_SPINBOX_PART_...)
* @return pointer to the style descriptor of the specified part
*/
static lv_style_list_t * lv_spinbox_get_style(lv_obj_t * ta, uint8_t part)
{
LV_ASSERT_OBJ(ta, LV_OBJX_NAME);
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(ta);
lv_style_list_t * style_dsc_p;
switch(part) {
case LV_SPINBOX_PART_BG:
style_dsc_p = &ta->style_list;
break;
case LV_SPINBOX_PART_CURSOR:
style_dsc_p = &ext->ta.cursor.style;
break;
default:
style_dsc_p = NULL;
}
return style_dsc_p;
}
static void lv_spinbox_updatevalue(lv_obj_t * spinbox)
{
lv_spinbox_ext_t * ext = lv_obj_get_ext_attr(spinbox);
char buf[LV_SPINBOX_MAX_DIGIT_COUNT + 8];
_lv_memset_00(buf, sizeof(buf));
char * buf_p = buf;
uint8_t cur_shift_left = 0;
if(ext->range_min < 0) { // hide sign if there are only positive values
/*Add the sign*/
(*buf_p) = ext->value >= 0 ? '+' : '-';
buf_p++;
}
else {
/*Cursor need shift to left*/
cur_shift_left++;
}
int32_t i;
/*padding left*/
for(i = 0; i < ext->digit_padding_left; i++) {
(*buf_p) = ' ';
buf_p++;
}
char digits[64];
/*Convert the numbers to string (the sign is already handled so always covert positive number)*/
_lv_utils_num_to_str(ext->value < 0 ? -ext->value : ext->value, digits);
/*Add leading zeros*/
int lz_cnt = ext->digit_count - (int)strlen(digits);
if(lz_cnt > 0) {
for(i = (uint16_t)strlen(digits); i >= 0; i--) {
digits[i + lz_cnt] = digits[i];
}
for(i = 0; i < lz_cnt; i++) {
digits[i] = '0';
}
}
int32_t intDigits;
intDigits = (ext->dec_point_pos == 0) ? ext->digit_count : ext->dec_point_pos;
/*Add the decimal part*/
for(i = 0; i < intDigits && digits[i] != '\0'; i++) {
(*buf_p) = digits[i];
buf_p++;
}
if(ext->dec_point_pos != 0) {
/*Insert the decimal point*/
(*buf_p) = '.';
buf_p++;
for(/*Leave i*/; i < ext->digit_count && digits[i] != '\0'; i++) {
(*buf_p) = digits[i];
buf_p++;
}
}
/*Refresh the text*/
lv_textarea_set_text(spinbox, (char *)buf);
/*Set the cursor position*/
int32_t step = ext->step;
uint8_t cur_pos = (uint8_t)ext->digit_count;
while(step >= 10) {
step /= 10;
cur_pos--;
}
if(cur_pos > intDigits) cur_pos++; /*Skip the decimal point*/
cur_pos += (ext->digit_padding_left - cur_shift_left);
lv_textarea_set_cursor_pos(spinbox, cur_pos);
}
#endif