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xiuos/APP_Framework/lib/lvgl/src/misc/lv_style.c

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/**
* @file lv_style.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_style.h"
#include "../misc/lv_mem.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
/**********************
* GLOBAL VARIABLES
**********************/
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_style_init(lv_style_t * style)
{
#if LV_USE_ASSERT_STYLE
if(style->sentinel == LV_STYLE_SENTINEL_VALUE && style->prop_cnt > 1) {
LV_LOG_WARN("Style might be already inited. (Potential memory leak)");
}
#endif
lv_memset_00(style, sizeof(lv_style_t));
#if LV_USE_ASSERT_STYLE
style->sentinel = LV_STYLE_SENTINEL_VALUE;
#endif
}
void lv_style_reset(lv_style_t * style)
{
LV_ASSERT_STYLE(style);
if(style->is_const) {
LV_LOG_ERROR("Cannot reset const style");
return;
}
if(style->prop_cnt > 1) lv_mem_free(style->v_p.values_and_props);
lv_memset_00(style, sizeof(lv_style_t));
#if LV_USE_ASSERT_STYLE
style->sentinel = LV_STYLE_SENTINEL_VALUE;
#endif
}
lv_style_prop_t lv_style_register_prop(void)
{
static uint16_t act_id = (uint16_t)_LV_STYLE_LAST_BUILT_IN_PROP;
act_id++;
return act_id;
}
bool lv_style_remove_prop(lv_style_t * style, lv_style_prop_t prop)
{
LV_ASSERT_STYLE(style);
if(style->is_const) {
LV_LOG_ERROR("Cannot remove prop from const style");
return false;
}
if(style->prop_cnt == 0) return false;
if(style->prop_cnt == 1) {
if(style->prop1 == prop) {
style->prop1 = LV_STYLE_PROP_INV;
style->prop_cnt = 0;
return true;
}
return false;
}
uint8_t * tmp = style->v_p.values_and_props + style->prop_cnt * sizeof(lv_style_value_t);
uint16_t * old_props = (uint16_t *)tmp;
uint32_t i;
for(i = 0; i < style->prop_cnt; i++) {
if(old_props[i] == prop) {
lv_style_value_t * old_values = (lv_style_value_t *)style->v_p.values_and_props;
if(style->prop_cnt == 2) {
style->prop_cnt = 1;
style->prop1 = i == 0 ? old_props[1] : old_props[0];
style->v_p.value1 = i == 0 ? old_values[1] : old_values[0];
}
else {
size_t size = (style->prop_cnt - 1) * (sizeof(lv_style_value_t) + sizeof(uint16_t));
uint8_t * new_values_and_props = lv_mem_alloc(size);
if(new_values_and_props == NULL) return false;
style->v_p.values_and_props = new_values_and_props;
style->prop_cnt--;
tmp = new_values_and_props + style->prop_cnt * sizeof(lv_style_value_t);
uint16_t * new_props = (uint16_t *)tmp;
lv_style_value_t * new_values = (lv_style_value_t *)new_values_and_props;
uint32_t j;
for(i = j = 0; j <= style->prop_cnt;
j++) { /*<=: because prop_cnt already reduced but all the old props. needs to be checked.*/
if(old_props[j] != prop) {
new_values[i] = old_values[j];
new_props[i++] = old_props[j];
}
}
}
lv_mem_free(old_values);
return true;
}
}
return false;
}
void lv_style_set_prop(lv_style_t * style, lv_style_prop_t prop, lv_style_value_t value)
{
LV_ASSERT_STYLE(style);
if(style->is_const) {
LV_LOG_ERROR("Cannot set property of constant style");
return;
}
if(style->prop_cnt > 1) {
uint8_t * tmp = style->v_p.values_and_props + style->prop_cnt * sizeof(lv_style_value_t);
uint16_t * props = (uint16_t *)tmp;
int32_t i;
for(i = style->prop_cnt - 1; i >= 0; i--) {
if(props[i] == prop) {
lv_style_value_t * values = (lv_style_value_t *)style->v_p.values_and_props;
values[i] = value;
return;
}
}
size_t size = (style->prop_cnt + 1) * (sizeof(lv_style_value_t) + sizeof(uint16_t));
uint8_t * values_and_props = lv_mem_realloc(style->v_p.values_and_props, size);
if(values_and_props == NULL) return;
style->v_p.values_and_props = values_and_props;
tmp = values_and_props + style->prop_cnt * sizeof(lv_style_value_t);
props = (uint16_t *)tmp;
/*Shift all props to make place for the value before them*/
for(i = style->prop_cnt - 1; i >= 0; i--) {
props[i + sizeof(lv_style_value_t) / sizeof(uint16_t)] = props[i];
}
style->prop_cnt++;
/*Go to the new position wit the props*/
tmp = values_and_props + style->prop_cnt * sizeof(lv_style_value_t);
props = (uint16_t *)tmp;
lv_style_value_t * values = (lv_style_value_t *)values_and_props;
/*Set the new property and value*/
props[style->prop_cnt - 1] = prop;
values[style->prop_cnt - 1] = value;
}
else if(style->prop_cnt == 1) {
if(style->prop1 == prop) {
style->v_p.value1 = value;
return;
}
size_t size = (style->prop_cnt + 1) * (sizeof(lv_style_value_t) + sizeof(uint16_t));
uint8_t * values_and_props = lv_mem_alloc(size);
if(values_and_props == NULL) return;
lv_style_value_t value_tmp = style->v_p.value1;
style->v_p.values_and_props = values_and_props;
style->prop_cnt++;
uint8_t * tmp = values_and_props + style->prop_cnt * sizeof(lv_style_value_t);
uint16_t * props = (uint16_t *)tmp;
lv_style_value_t * values = (lv_style_value_t *)values_and_props;
props[0] = style->prop1;
props[1] = prop;
values[0] = value_tmp;
values[1] = value;
}
else {
style->prop_cnt = 1;
style->prop1 = prop;
style->v_p.value1 = value;
}
uint8_t group = _lv_style_get_prop_group(prop);
style->has_group |= 1 << group;
}
lv_res_t lv_style_get_prop(lv_style_t * style, lv_style_prop_t prop, lv_style_value_t * value)
{
return lv_style_get_prop_inlined(style, prop, value);
}
void lv_style_transition_dsc_init(lv_style_transition_dsc_t * tr, const lv_style_prop_t props[],
lv_anim_path_cb_t path_cb, uint32_t time, uint32_t delay, void * user_data)
{
lv_memset_00(tr, sizeof(lv_style_transition_dsc_t));
tr->props = props;
tr->path_xcb = path_cb == NULL ? lv_anim_path_linear : path_cb;
tr->time = time;
tr->delay = delay;
#if LV_USE_USER_DATA
tr->user_data = user_data;
#else
LV_UNUSED(user_data);
#endif
}
lv_style_value_t lv_style_prop_get_default(lv_style_prop_t prop)
{
lv_style_value_t value;
switch(prop) {
case LV_STYLE_TRANSFORM_ZOOM:
value.num = LV_IMG_ZOOM_NONE;
break;
case LV_STYLE_BG_COLOR:
value.color = lv_color_white();
break;
case LV_STYLE_BG_GRAD_COLOR:
case LV_STYLE_BORDER_COLOR:
case LV_STYLE_SHADOW_COLOR:
case LV_STYLE_OUTLINE_COLOR:
case LV_STYLE_ARC_COLOR:
case LV_STYLE_LINE_COLOR:
case LV_STYLE_TEXT_COLOR:
case LV_STYLE_IMG_RECOLOR:
value.color = lv_color_black();
break;
case LV_STYLE_OPA:
case LV_STYLE_BORDER_OPA:
case LV_STYLE_TEXT_OPA:
case LV_STYLE_IMG_OPA:
case LV_STYLE_BG_IMG_OPA:
case LV_STYLE_OUTLINE_OPA:
case LV_STYLE_SHADOW_OPA:
case LV_STYLE_LINE_OPA:
case LV_STYLE_ARC_OPA:
value.num = LV_OPA_COVER;
break;
case LV_STYLE_BG_GRAD_STOP:
value.num = 255;
break;
case LV_STYLE_BORDER_SIDE:
value.num = LV_BORDER_SIDE_FULL;
break;
case LV_STYLE_TEXT_FONT:
value.ptr = LV_FONT_DEFAULT;
break;
case LV_STYLE_MAX_WIDTH:
case LV_STYLE_MAX_HEIGHT:
value.num = LV_COORD_MAX;
break;
default:
value.ptr = NULL;
value.num = 0;
break;
}
return value;
}
bool lv_style_is_empty(const lv_style_t * style)
{
LV_ASSERT_STYLE(style);
return style->prop_cnt == 0 ? true : false;
}
uint8_t _lv_style_get_prop_group(lv_style_prop_t prop)
{
uint16_t group = (prop & 0x1FF) >> 4;
if(group > 7) group = 7; /*The MSB marks all the custom properties*/
return (uint8_t)group;
}
/**********************
* STATIC FUNCTIONS
**********************/
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