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SourceVuESP-IDF Framework and Examplesi80_controller samplecalc()

calc() function

Calculate the grid cells coordinates

Syntax

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Summary

Declaration

Definition

from lv_grid.c:57

static void calc(lv_obj_t * obj, lv_grid_calc_t * calc);

Implemented in lv_grid.c:233

Arguments

Argument

Description

obj

calc

store the calculated cells sizes here

Notes

`lv_grid_calc_free(calc_out)` needs to be called when `calc_out` is not needed anymore

References

Code

Location

Referrer

static void calc(lv_obj_t * cont, lv_grid_calc_t * calc_out)

lv_grid.c:233

static void calc(lv_obj_t * obj, lv_grid_calc_t * calc);

lv_grid.c:57

calc(cont, &c);

lv_grid.c:197

grid_update()

Call Tree

calc() is called by 1 function and calls 14 functions:

grid_update()

calc()

lv_memzero()

lv_obj_get_style_width()

lv_obj_get_style_height()

lv_obj_get_style_pad_row()

lv_obj_get_style_pad_column()

lv_obj_get_style_base_dir()

lv_obj_get_child()

lv_obj_get_content_width()

lv_obj_get_content_height()

Data Use

calc() reads 10 variables and writes 2 variables:

::LV_PART_MAIN

lv_obj_t::h_layout

lv_obj_t::w_layout

lv_base_dir_t::LV_BASE_DIR_RTL

lv_grid_calc_t::col_num

lv_grid_calc_t::row_num

calc()

lv_grid_calc_t::grid_w

lv_grid_calc_t::grid_h

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