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hekate/bdk/libs/lvgl/lv_objx/lv_preload.c

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/**
* @file lv_preload.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_preload.h"
#if USE_LV_PRELOAD != 0
#include "../lv_misc/lv_math.h"
#include "../lv_draw/lv_draw_rect.h"
#include "../lv_draw/lv_draw_arc.h"
#include "../lv_themes/lv_theme.h"
/*********************
* DEFINES
*********************/
#ifndef LV_PRELOAD_DEF_ARC_LENGTH
# define LV_PRELOAD_DEF_ARC_LENGTH 60 /*[deg]*/
#endif
#ifndef LV_PRELOAD_DEF_SPIN_TIME
# define LV_PRELOAD_DEF_SPIN_TIME 1000 /*[ms]*/
#endif
#ifndef LV_PRELOAD_DEF_ANIM
# define LV_PRELOAD_DEF_ANIM LV_PRELOAD_TYPE_SPINNING_ARC /*animation type*/
#endif
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static bool lv_preload_design(lv_obj_t * preload, const lv_area_t * mask, lv_design_mode_t mode);
static lv_res_t lv_preload_signal(lv_obj_t * preload, lv_signal_t sign, void * param);
/**********************
* STATIC VARIABLES
**********************/
static lv_signal_func_t ancestor_signal;
static lv_design_func_t ancestor_design;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Create a pre loader object
* @param par pointer to an object, it will be the parent of the new pre loader
* @param copy pointer to a pre loader object, if not NULL then the new object will be copied from it
* @return pointer to the created pre loader
*/
lv_obj_t * lv_preload_create(lv_obj_t * par, const lv_obj_t * copy)
{
LV_LOG_TRACE("preload create started");
/*Create the ancestor of pre loader*/
lv_obj_t * new_preload = lv_arc_create(par, copy);
lv_mem_assert(new_preload);
if(new_preload == NULL) return NULL;
/*Allocate the pre loader type specific extended data*/
lv_preload_ext_t * ext = lv_obj_allocate_ext_attr(new_preload, sizeof(lv_preload_ext_t));
lv_mem_assert(ext);
if(ext == NULL) return NULL;
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_preload);
if(ancestor_design == NULL) ancestor_design = lv_obj_get_design_func(new_preload);
/*Initialize the allocated 'ext' */
ext->arc_length = LV_PRELOAD_DEF_ARC_LENGTH;
ext->anim_type = LV_PRELOAD_DEF_ANIM;
/*The signal and design functions are not copied so set them here*/
lv_obj_set_signal_func(new_preload, lv_preload_signal);
lv_obj_set_design_func(new_preload, lv_preload_design);
/*Init the new pre loader pre loader*/
if(copy == NULL) {
lv_obj_set_size(new_preload, LV_DPI / 2, LV_DPI / 2);
/*Set the default styles*/
lv_theme_t * th = lv_theme_get_current();
if(th) {
lv_preload_set_style(new_preload, LV_PRELOAD_STYLE_MAIN, th->preload);
} else {
lv_obj_set_style(new_preload, &lv_style_pretty_color);
}
ext->time = LV_PRELOAD_DEF_SPIN_TIME;
}
/*Copy an existing pre loader*/
else {
lv_preload_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
ext->arc_length = copy_ext->arc_length;
ext->time = copy_ext->time;
/*Refresh the style with new signal function*/
lv_obj_refresh_style(new_preload);
}
lv_preload_set_animation_type(new_preload, ext->anim_type);
LV_LOG_INFO("preload created");
return new_preload;
}
/*======================
* Add/remove functions
*=====================*/
/**
* Set the length of the spinning arc in degrees
* @param preload pointer to a preload object
* @param deg length of the arc
*/
void lv_preload_set_arc_length(lv_obj_t * preload, uint16_t deg)
{
lv_preload_ext_t * ext = lv_obj_get_ext_attr(preload);
ext->arc_length = deg;
}
/**
* Set the spin time of the arc
* @param preload pointer to a preload object
* @param time time of one round in milliseconds
*/
void lv_preload_set_spin_time(lv_obj_t * preload, uint16_t time)
{
lv_preload_ext_t * ext = lv_obj_get_ext_attr(preload);
ext->time = time;
lv_preload_set_animation_type(preload, ext->anim_type);
}
/*=====================
* Setter functions
*====================*/
/**
* Set a style of a pre loader.
* @param preload pointer to pre loader object
* @param type which style should be set
* @param style pointer to a style
* */
void lv_preload_set_style(lv_obj_t * preload, lv_preload_style_t type, lv_style_t * style)
{
switch(type) {
case LV_PRELOAD_STYLE_MAIN:
lv_arc_set_style(preload, LV_ARC_STYLE_MAIN, style);
break;
}
}
/**
* Set the animation type of a preloadeer.
* @param preload pointer to pre loader object
* @param type animation type of the preload
* */
void lv_preload_set_animation_type(lv_obj_t * preload, lv_preloader_type_t type)
{
#if USE_LV_ANIMATION
lv_preload_ext_t * ext = lv_obj_get_ext_attr(preload);
/*delete previous animation*/
//lv_anim_del(preload, NULL);
switch(type)
{
case LV_PRELOAD_TYPE_FILLSPIN_ARC:
{
ext->anim_type = LV_PRELOAD_TYPE_FILLSPIN_ARC;
lv_anim_t a;
a.var = preload;
a.start = 0;
a.end = 360;
a.fp = (lv_anim_fp_t)lv_preload_spinner_animation;
a.path = lv_anim_path_ease_in_out;
a.end_cb = NULL;
a.act_time = 0;
a.time = ext->time;
a.playback = 0;
a.playback_pause = 0;
a.repeat = 1;
a.repeat_pause = 0;
lv_anim_create(&a);
lv_anim_t b;
b.var = preload;
b.start = ext->arc_length;
b.end = 360 - ext->arc_length;
b.fp = (lv_anim_fp_t)lv_preload_set_arc_length;
b.path = lv_anim_path_ease_in_out;
b.end_cb = NULL;
b.act_time = 0;
b.time = ext->time;
b.playback = 1;
b.playback_pause = 0;
b.repeat = 1;
b.repeat_pause = 0;
lv_anim_create(&b);
break;
}
case LV_PRELOAD_TYPE_SPINNING_ARC:
default:
{
ext->anim_type = LV_PRELOAD_TYPE_SPINNING_ARC;
lv_anim_t a;
a.var = preload;
a.start = 0;
a.end = 360;
a.fp = (lv_anim_fp_t)lv_preload_spinner_animation;
a.path = lv_anim_path_ease_in_out;
a.end_cb = NULL;
a.act_time = 0;
a.time = ext->time;
a.playback = 0;
a.playback_pause = 0;
a.repeat = 1;
a.repeat_pause = 0;
lv_anim_create(&a);
break;
}
}
#endif //USE_LV_ANIMATION
}
/*=====================
* Getter functions
*====================*/
/**
* Get the arc length [degree] of the a pre loader
* @param preload pointer to a pre loader object
*/
uint16_t lv_preload_get_arc_length(const lv_obj_t * preload)
{
lv_preload_ext_t * ext = lv_obj_get_ext_attr(preload);
return ext->arc_length;
}
/**
* Get the spin time of the arc
* @param preload pointer to a pre loader object [milliseconds]
*/
uint16_t lv_preload_get_spin_time(const lv_obj_t * preload)
{
lv_preload_ext_t * ext = lv_obj_get_ext_attr(preload);
return ext->time;
}
/**
* Get style of a pre loader.
* @param preload pointer to pre loader object
* @param type which style should be get
* @return style pointer to the style
* */
lv_style_t * lv_preload_get_style(const lv_obj_t * preload, lv_preload_style_t type)
{
lv_style_t * style = NULL;
switch(type) {
case LV_PRELOAD_STYLE_MAIN:
style = lv_arc_get_style(preload, LV_ARC_STYLE_MAIN);
break;
default:
style = NULL;
break;
}
return style;
}
/**
* Get the animation type of a preloadeer.
* @param preload pointer to pre loader object
* @return animation type
* */
lv_preloader_type_t lv_preload_get_animation_type(lv_obj_t * preload)
{
lv_preload_ext_t * ext = lv_obj_get_ext_attr(preload);
return ext->anim_type;
}
/*=====================
* Other functions
*====================*/
/**
* Automatically in an animation to rotate the arc of spinner.
* @param ptr pointer to preloader
* @param val the current desired value [0..360]
*/
void lv_preload_spinner_animation(void * ptr, int32_t val)
{
lv_obj_t * preload = ptr;
lv_preload_ext_t * ext = lv_obj_get_ext_attr(preload);
int16_t angle_start = val - ext->arc_length / 2 + 180;
int16_t angle_end = angle_start + ext->arc_length;
angle_start = angle_start % 360;
angle_end = angle_end % 360;
lv_arc_set_angles(preload, angle_start, angle_end);
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Handle the drawing related tasks of the pre loaders
* @param preload pointer to an object
* @param mask 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 true/false, depends on 'mode'
*/
static bool lv_preload_design(lv_obj_t * preload, const lv_area_t * mask, lv_design_mode_t mode)
{
/*Return false if the object is not covers the mask_p area*/
if(mode == LV_DESIGN_COVER_CHK) {
return false;
}
/*Draw the object*/
else if(mode == LV_DESIGN_DRAW_MAIN) {
/*Draw a circle as background*/
lv_style_t * style = lv_arc_get_style(preload, LV_ARC_STYLE_MAIN);
if(style->body.border.width > 0) {
lv_coord_t r = (LV_MATH_MIN(lv_obj_get_width(preload), lv_obj_get_height(preload))) / 2;
r -= LV_MATH_MIN(style->body.padding.hor, style->body.padding.ver);
lv_coord_t x = preload->coords.x1 + lv_obj_get_width(preload) / 2;
lv_coord_t y = preload->coords.y1 + lv_obj_get_height(preload) / 2;
lv_style_t bg_style;
lv_style_copy(&bg_style, &lv_style_plain);
bg_style.body.empty = 1;
bg_style.body.radius = LV_RADIUS_CIRCLE;
bg_style.body.border.color = style->body.border.color;
bg_style.body.border.width = style->body.border.width;
lv_area_t bg_area;
bg_area.x1 = x - r;
bg_area.y1 = y - r;
bg_area.x2 = x + r;
bg_area.y2 = y + r;
lv_draw_rect(&bg_area, mask, &bg_style, lv_obj_get_opa_scale(preload));
}
/*Draw the arc above the background circle */
ancestor_design(preload, mask, mode);
}
/*Post draw when the children are drawn*/
else if(mode == LV_DESIGN_DRAW_POST) {
}
return true;
}
/**
* Signal function of the pre loader
* @param preload pointer to a pre loader 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_preload_signal(lv_obj_t * preload, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = ancestor_signal(preload, sign, param);
if(res != LV_RES_OK) return res;
if(sign == LV_SIGNAL_CLEANUP) {
/*Nothing to cleanup. (No dynamically allocated memory in 'ext')*/
} else if(sign == LV_SIGNAL_GET_TYPE) {
lv_obj_type_t * buf = param;
uint8_t i;
for(i = 0; i < LV_MAX_ANCESTOR_NUM - 1; i++) { /*Find the last set data*/
if(buf->type[i] == NULL) break;
}
buf->type[i] = "lv_preload";
}
return res;
}
#endif