further renames
This commit is contained in:
320
lv_objx/lv_bar.c
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320
lv_objx/lv_bar.c
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/**
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* @file lv_bar.c
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*
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*/
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/*********************
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* INCLUDES
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*********************/
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#include "lv_conf.h"
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#if USE_LV_BAR != 0
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#include <lvgl/lv_objx/lv_bar.h>
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#include "../lv_draw/lv_draw.h"
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#include <stdio.h>
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/*********************
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* DEFINES
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*********************/
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#define LV_BAR_TXT_MAX_LENGTH 64
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#define LV_BAR_DEF_FORMAT "%d %%"
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#define LV_BAR_DEF_WIDTH (LV_DPI * 2)
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#define LV_BAR_DEF_HEIGHT (LV_DPI / 2)
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* STATIC PROTOTYPES
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**********************/
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static bool lv_bar_design(lv_obj_t * bar, const area_t * mask, lv_design_mode_t mode);
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static void lv_bars_init(void);
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/**********************
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* STATIC VARIABLES
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**********************/
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static lv_bars_t lv_bars_def;
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static lv_design_f_t ancestor_design_f;
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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/*-----------------
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* Create function
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*-----------------*/
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/**
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* Create a bar objects
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* @param par pointer to an object, it will be the parent of the new bar
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* @param copy pointer to a bar object, if not NULL then the new object will be copied from it
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* @return pointer to the created bar
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*/
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lv_obj_t * lv_bar_create(lv_obj_t * par, lv_obj_t * copy)
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{
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/*Create the ancestor basic object*/
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lv_obj_t * new_bar = lv_rect_create(par, copy);
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dm_assert(new_bar);
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/*Allocate the object type specific extended data*/
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lv_bar_ext_t * ext = lv_obj_alloc_ext(new_bar, sizeof(lv_bar_ext_t));
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dm_assert(ext);
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ext->min_value = 0;
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ext->max_value = 100;
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ext->act_value = 0;
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ext->format_str = NULL;
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ext->label = NULL;
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/* Save the rectangle design function.
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* It will be used in the bar design function*/
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if(ancestor_design_f == NULL) ancestor_design_f = lv_obj_get_design_f(new_bar);
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lv_obj_set_signal_f(new_bar, lv_bar_signal);
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lv_obj_set_design_f(new_bar, lv_bar_design);
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/*Init the new bar object*/
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if(copy == NULL) {
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ext->format_str = dm_alloc(strlen(LV_BAR_DEF_FORMAT) + 1);
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strcpy(ext->format_str, LV_BAR_DEF_FORMAT);
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ext->label = lv_label_create(new_bar, NULL);
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lv_rect_set_layout(new_bar, LV_RECT_LAYOUT_CENTER);
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lv_obj_set_click(new_bar, false);
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lv_obj_set_size(new_bar, LV_BAR_DEF_WIDTH, LV_BAR_DEF_HEIGHT);
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lv_obj_set_style(new_bar, lv_bars_get(LV_BARS_DEF, NULL));
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lv_bar_set_value(new_bar, ext->act_value);
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} else {
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lv_bar_ext_t * ext_copy = lv_obj_get_ext(copy);
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ext->format_str = dm_alloc(strlen(ext_copy->format_str) + 1);
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strcpy(ext->format_str, ext_copy->format_str);
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ext->min_value = ext_copy->min_value;
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ext->max_value = ext_copy->max_value;
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ext->act_value = ext_copy->act_value;
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ext->label = lv_label_create(new_bar, ext_copy->label);
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/*Refresh the style with new signal function*/
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lv_obj_refr_style(new_bar);
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lv_bar_set_value(new_bar, ext->act_value);
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}
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return new_bar;
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}
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/**
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* Signal function of the bar
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* @param bar pointer to a bar object
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* @param sign a signal type from lv_signal_t enum
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* @param param pointer to a signal specific variable
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*/
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bool lv_bar_signal(lv_obj_t * bar, lv_signal_t sign, void * param)
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{
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bool valid;
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/* Include the ancient signal function */
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valid = lv_rect_signal(bar, sign, param);
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/* The object can be deleted so check its validity and then
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* make the object specific signal handling */
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if(valid != false) {
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lv_bar_ext_t * ext = lv_obj_get_ext(bar);
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lv_bars_t * style = lv_obj_get_style(bar);
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point_t p;
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char buf[LV_BAR_TXT_MAX_LENGTH];
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switch(sign) {
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case LV_SIGNAL_CLEANUP:
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dm_free(ext->format_str);
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ext->format_str = NULL;
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break;
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case LV_SIGNAL_STYLE_CHG:
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lv_obj_set_style(ext->label, &style->label);
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lv_bar_set_value(bar, lv_bar_get_value(bar));
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break;
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default:
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break;
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}
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}
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return valid;
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}
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/*=====================
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* Setter functions
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*====================*/
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/**
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* Set a new value on the bar
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* @param bar pointer to a bar object
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* @param value new value
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*/
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void lv_bar_set_value(lv_obj_t * bar, int16_t value)
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{
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lv_bar_ext_t * ext = lv_obj_get_ext(bar);
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ext->act_value = value > ext->max_value ? ext->max_value : value;
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ext->act_value = ext->act_value < ext->min_value ? ext->min_value : ext->act_value;
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char buf[LV_BAR_TXT_MAX_LENGTH];
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sprintf(buf, ext->format_str, ext->act_value);
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lv_label_set_text(ext->label, buf);
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lv_obj_inv(bar);
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}
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/**
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* Set minimum and the maximum values of a bar
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* @param bar pointer to he bar object
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* @param min minimum value
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* @param max maximum value
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*/
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void lv_bar_set_range(lv_obj_t * bar, int16_t min, int16_t max)
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{
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lv_bar_ext_t * ext = lv_obj_get_ext(bar);
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ext->max_value = max;
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ext->max_value = max;
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if(ext->act_value > max) {
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ext->act_value = max;
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lv_bar_set_value(bar, ext->act_value);
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}
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lv_obj_inv(bar);
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}
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/**
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* Set format string for the label of the bar
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* @param bar pointer to bar object
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* @param format a printf-like format string with one number (e.g. "Loading (%d)")
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*/
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void lv_bar_set_format_str(lv_obj_t * bar, const char * format)
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{
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lv_bar_ext_t * ext = lv_obj_get_ext(bar);
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dm_free(ext->format_str);
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ext->format_str = dm_alloc(strlen(format) + 1);
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strcpy(ext->format_str, format);
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lv_bar_set_value(bar, ext->act_value);
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}
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/*=====================
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* Getter functions
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*====================*/
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/**
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* Get the value of a bar
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* @param bar pointer to a bar object
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* @return the value of the bar
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*/
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int16_t lv_bar_get_value(lv_obj_t * bar)
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{
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lv_bar_ext_t * ext = lv_obj_get_ext(bar);
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return ext->act_value;
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}
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/**
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* Return with a pointer to a built-in style and/or copy it to a variable
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* @param style a style name from lv_bars_builtin_t enum
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* @param copy copy the style to this variable. (NULL if unused)
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* @return pointer to an lv_bars_t style
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*/
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lv_bars_t * lv_bars_get(lv_bars_builtin_t style, lv_bars_t * copy)
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{
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static bool style_inited = false;
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/*Make the style initialization if it is not done yet*/
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if(style_inited == false) {
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lv_bars_init();
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style_inited = true;
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}
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lv_bars_t *style_p;
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switch(style) {
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case LV_BARS_DEF:
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style_p = &lv_bars_def;
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break;
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default:
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style_p = &lv_bars_def;
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}
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if(copy != NULL) memcpy(copy, style_p, sizeof(lv_bars_t));
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return style_p;
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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/**
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* Handle the drawing related tasks of the bars
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* @param bar pointer to an object
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* @param mask the object will be drawn only in this area
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* @param mode LV_DESIGN_COVER_CHK: only check if the object fully covers the 'mask_p' area
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* (return 'true' if yes)
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* LV_DESIGN_DRAW: draw the object (always return 'true')
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* LV_DESIGN_DRAW_POST: drawing after every children are drawn
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* @param return true/false, depends on 'mode'
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*/
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static bool lv_bar_design(lv_obj_t * bar, const area_t * mask, lv_design_mode_t mode)
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{
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if(ancestor_design_f == NULL) return false;
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if(mode == LV_DESIGN_COVER_CHK) {
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/*Return false if the object is not covers the mask_p area*/
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return ancestor_design_f(bar, mask, mode);
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} else if(mode == LV_DESIGN_DRAW_MAIN) {
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ancestor_design_f(bar, mask, mode);
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lv_bar_ext_t * ext = lv_obj_get_ext(bar);
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lv_bars_t * style = lv_obj_get_style(bar);
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area_t bar_area;
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uint32_t tmp;
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area_cpy(&bar_area, &bar->cords);
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cord_t w = lv_obj_get_width(bar);
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cord_t h = lv_obj_get_height(bar);
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if(w >= h) {
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bar_area.x2 = (int32_t) ((int32_t)w * ext->act_value) / (ext->max_value - ext->min_value);
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bar_area.x2 += bar_area.x1;
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} else {
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bar_area.y1 = (int32_t) ((int32_t)h * ext->act_value) / (ext->max_value - ext->min_value);
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bar_area.y1 = bar_area.y2 - bar_area.y1;
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}
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/*Draw the main bar*/
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lv_draw_rect(&bar_area, mask, &style->indic);
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}
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return true;
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}
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/**
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* Initialize the bar styles
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*/
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static void lv_bars_init(void)
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{
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/*Default style*/
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lv_rects_get(LV_RECTS_FANCY, &lv_bars_def.bg); /*Background*/
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lv_bars_def.bg.base.color = COLOR_WHITE;
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lv_bars_def.bg.gcolor = COLOR_SILVER,
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lv_bars_def.bg.bcolor = COLOR_BLACK;
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lv_rects_get(LV_RECTS_FANCY, &lv_bars_def.indic); /*Bar*/
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lv_bars_def.indic.base.color = COLOR_LIME;
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lv_bars_def.indic.gcolor = COLOR_GREEN;
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lv_bars_def.indic.bcolor = COLOR_BLACK;
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lv_bars_def.indic.swidth = 0;
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lv_labels_get(LV_LABELS_TXT, &lv_bars_def.label); /*Label*/
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lv_bars_def.label.line_space = 0;
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}
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#endif
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