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hekate/bdk/libs/lvgl/lv_objx/lv_table.c
CTCaer 185526d134 Introducing Bootloader Development Kit (BDK) 
BDK will allow developers to use the full collection of drivers,
with limited editing, if any, for making payloads for Nintendo Switch.

Using a single source for everything will also help decoupling
Switch specific code and easily port it to other Tegra X1/X1+ platforms.
And maybe even to lower targets.

Everything is now centrilized into bdk folder.
Every module or project can utilize it by simply including it.

This is just the start and it will continue to improve.
2020-06-14 15:25:21 +03:00

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/**
* @file lv_table.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_table.h"
#if USE_LV_TABLE != 0
#include "../lv_misc/lv_txt.h"
#include "../lv_misc/lv_math.h"
#include "../lv_draw/lv_draw_label.h"
#include "../lv_themes/lv_theme.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static bool lv_table_design(lv_obj_t * table, const lv_area_t * mask, lv_design_mode_t mode);
static lv_res_t lv_table_signal(lv_obj_t * table, lv_signal_t sign, void * param);
static lv_coord_t get_row_height(lv_obj_t * table, uint16_t row_id);
static void refr_size(lv_obj_t * table);
/**********************
* STATIC VARIABLES
**********************/
static lv_signal_func_t ancestor_signal;
static lv_design_func_t ancestor_scrl_design;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Create a table object
* @param par pointer to an object, it will be the parent of the new table
* @param copy pointer to a table object, if not NULL then the new object will be copied from it
* @return pointer to the created table
*/
lv_obj_t * lv_table_create(lv_obj_t * par, const lv_obj_t * copy)
{
LV_LOG_TRACE("table create started");
/*Create the ancestor of table*/
lv_obj_t * new_table = lv_obj_create(par, copy);
lv_mem_assert(new_table);
if(new_table == NULL) return NULL;
/*Allocate the table type specific extended data*/
lv_table_ext_t * ext = lv_obj_allocate_ext_attr(new_table, sizeof(lv_table_ext_t));
lv_mem_assert(ext);
if(ext == NULL) return NULL;
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_table);
if(ancestor_scrl_design == NULL) ancestor_scrl_design = lv_obj_get_design_func(new_table);
/*Initialize the allocated 'ext' */
ext->cell_data = NULL;
ext->cell_style[0] = &lv_style_plain;
ext->cell_style[1] = &lv_style_plain;
ext->cell_style[2] = &lv_style_plain;
ext->cell_style[3] = &lv_style_plain;
ext->col_cnt = 0;
ext->row_cnt = 0;
uint16_t i;
for(i = 0; i < LV_TABLE_COL_MAX; i++) {
ext->col_w[i] = LV_DPI;
}
/*The signal and design functions are not copied so set them here*/
lv_obj_set_signal_func(new_table, lv_table_signal);
lv_obj_set_design_func(new_table, lv_table_design);
/*Init the new table table*/
if(copy == NULL) {
/*Set the default styles*/
lv_theme_t * th = lv_theme_get_current();
if(th) {
lv_table_set_style(new_table, LV_TABLE_STYLE_BG, th->table.bg);
lv_table_set_style(new_table, LV_TABLE_STYLE_CELL1, th->table.cell);
lv_table_set_style(new_table, LV_TABLE_STYLE_CELL2, th->table.cell);
lv_table_set_style(new_table, LV_TABLE_STYLE_CELL3, th->table.cell);
lv_table_set_style(new_table, LV_TABLE_STYLE_CELL4, th->table.cell);
} else {
lv_table_set_style(new_table, LV_TABLE_STYLE_BG, &lv_style_plain_color);
}
}
/*Copy an existing table*/
else {
lv_table_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
ext->cell_style[0] = copy_ext->cell_style[0];
ext->cell_style[1] = copy_ext->cell_style[1];
ext->cell_style[2] = copy_ext->cell_style[2];
ext->cell_style[3] = copy_ext->cell_style[3];
ext->col_cnt = copy_ext->col_cnt;
ext->row_cnt = copy_ext->row_cnt;
/*Refresh the style with new signal function*/
lv_obj_refresh_style(new_table);
}
LV_LOG_INFO("table created");
return new_table;
}
/*=====================
* Setter functions
*====================*/
/**
* Set the value of a cell.
* @param table pointer to a Table object
* @param row id of the row [0 .. row_cnt -1]
* @param col id of the column [0 .. col_cnt -1]
* @param txt text to display in the cell. It will be copied and saved so this variable is not required after this function call.
*/
void lv_table_set_cell_value(lv_obj_t * table, uint16_t row, uint16_t col, const char * txt)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
if(row >= ext->row_cnt || col >= ext->col_cnt) {
LV_LOG_WARN("lv_table_set_cell_value: invalid row or column");
return;
}
uint32_t cell = row * ext->col_cnt + col;
lv_table_cell_format_t format;
/*Save the format byte*/
if(ext->cell_data[cell]) {
format.format_byte = ext->cell_data[cell][0];
}
/*Initialize the format byte*/
else {
format.align = LV_LABEL_ALIGN_LEFT;
format.right_merge = 0;
format.type = 0;
format.crop = 0;
}
ext->cell_data[cell] = lv_mem_realloc(ext->cell_data[cell], strlen(txt) + 2); /*+1: trailing '\0; +1: format byte*/
strcpy(ext->cell_data[cell] + 1, txt); /*Leave the format byte*/
ext->cell_data[cell][0] = format.format_byte;
refr_size(table);
}
/**
* Set the number of rows
* @param table table pointer to a Table object
* @param row_cnt number of rows
*/
void lv_table_set_row_cnt(lv_obj_t * table, uint16_t row_cnt)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
uint16_t old_row_cnt = ext->row_cnt;
ext->row_cnt = row_cnt;
if(ext->row_cnt > 0 && ext->col_cnt > 0) {
ext->cell_data = lv_mem_realloc(ext->cell_data, ext->row_cnt * ext->col_cnt * sizeof(char*));
/*Initilize the new fields*/
if(old_row_cnt < row_cnt) {
uint16_t old_cell_cnt = old_row_cnt * ext->col_cnt;
uint32_t new_cell_cnt = ext->col_cnt * ext->row_cnt;
memset(&ext->cell_data[old_cell_cnt], 0, (new_cell_cnt - old_cell_cnt) * sizeof(ext->cell_data[0]));
}
}
else {
lv_mem_free(ext->cell_data);
ext->cell_data = NULL;
}
refr_size(table);
}
/**
* Set the number of columns
* @param table table pointer to a Table object
* @param col_cnt number of columns. Must be < LV_TABLE_COL_MAX
*/
void lv_table_set_col_cnt(lv_obj_t * table, uint16_t col_cnt)
{
if(col_cnt >= LV_TABLE_COL_MAX) {
LV_LOG_WARN("lv_table_set_col_cnt: too many columns. Must be < LV_TABLE_COL_MAX.");
return;
}
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
uint16_t old_col_cnt = ext->col_cnt;
ext->col_cnt = col_cnt;
if(ext->row_cnt > 0 && ext->col_cnt > 0) {
ext->cell_data = lv_mem_realloc(ext->cell_data, ext->row_cnt * ext->col_cnt * sizeof(char*));
/*Initilize the new fields*/
if(old_col_cnt < col_cnt) {
uint16_t old_cell_cnt = old_col_cnt * ext->row_cnt;
uint32_t new_cell_cnt = ext->col_cnt * ext->row_cnt;
memset(&ext->cell_data[old_cell_cnt], 0, (new_cell_cnt - old_cell_cnt) * sizeof(ext->cell_data[0]));
}
}
else {
lv_mem_free(ext->cell_data);
ext->cell_data = NULL;
}
refr_size(table);
}
/**
* Set the width of a column
* @param table table pointer to a Table object
* @param col_id id of the column [0 .. LV_TABLE_COL_MAX -1]
* @param w width of the column
*/
void lv_table_set_col_width(lv_obj_t * table, uint16_t col_id, lv_coord_t w)
{
if(col_id >= LV_TABLE_COL_MAX) {
LV_LOG_WARN("lv_table_set_col_width: too big 'col_id'. Must be < LV_TABLE_COL_MAX.");
return;
}
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
ext->col_w[col_id] = w;
refr_size(table);
}
/**
* Set the text align in a cell
* @param table pointer to a Table object
* @param row id of the row [0 .. row_cnt -1]
* @param col id of the column [0 .. col_cnt -1]
* @param align LV_LABEL_ALIGN_LEFT or LV_LABEL_ALIGN_CENTER or LV_LABEL_ALIGN_RIGHT
*/
void lv_table_set_cell_align(lv_obj_t * table, uint16_t row, uint16_t col, lv_label_align_t align)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
if(row >= ext->row_cnt || col >= ext->col_cnt) {
LV_LOG_WARN("lv_table_set_cell_align: invalid row or column");
return;
}
uint32_t cell = row * ext->col_cnt + col;
if(ext->cell_data[cell] == NULL) {
ext->cell_data[cell] = lv_mem_alloc(2); /*+1: trailing '\0; +1: format byte*/
ext->cell_data[cell][0] = 0;
ext->cell_data[cell][1] = '\0';
}
lv_table_cell_format_t format;
format.format_byte = ext->cell_data[cell][0];
format.align = align;
ext->cell_data[cell][0] = format.format_byte;
}
/**
* Set the type of a cell.
* @param table pointer to a Table object
* @param row id of the row [0 .. row_cnt -1]
* @param col id of the column [0 .. col_cnt -1]
* @param type 1,2,3 or 4. The cell style will be chosen accordingly.
*/
void lv_table_set_cell_type(lv_obj_t * table, uint16_t row, uint16_t col, uint8_t type)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
if(row >= ext->row_cnt || col >= ext->col_cnt) {
LV_LOG_WARN("lv_table_set_cell_type: invalid row or column");
return;
}
uint32_t cell = row * ext->col_cnt + col;
if(ext->cell_data[cell] == NULL) {
ext->cell_data[cell] = lv_mem_alloc(2); /*+1: trailing '\0; +1: format byte*/
ext->cell_data[cell][0] = 0;
ext->cell_data[cell][1] = '\0';
}
if(type > 0) type--; /*User gives 1,2,3,4 but easier to handle 0, 1, 2, 3*/
if(type >= LV_TABLE_CELL_STYLE_CNT) type = LV_TABLE_CELL_STYLE_CNT - 1;
lv_table_cell_format_t format;
format.format_byte = ext->cell_data[cell][0];
format.type = type;
ext->cell_data[cell][0] = format.format_byte;
}
/**
* Set the cell crop. (Don't adjust the height of the cell according to its content)
* @param table pointer to a Table object
* @param row id of the row [0 .. row_cnt -1]
* @param col id of the column [0 .. col_cnt -1]
* @param crop true: crop the cell content; false: set the cell height to the content.
*/
void lv_table_set_cell_crop(lv_obj_t * table, uint16_t row, uint16_t col, bool crop)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
if(row >= ext->row_cnt || col >= ext->col_cnt) {
LV_LOG_WARN("lv_table_set_cell_crop: invalid row or column");
return;
}
uint32_t cell = row * ext->col_cnt + col;
if(ext->cell_data[cell] == NULL) {
ext->cell_data[cell] = lv_mem_alloc(2); /*+1: trailing '\0; +1: format byte*/
ext->cell_data[cell][0] = 0;
ext->cell_data[cell][1] = '\0';
}
lv_table_cell_format_t format;
format.format_byte = ext->cell_data[cell][0];
format.crop = crop;
ext->cell_data[cell][0] = format.format_byte;
}
/**
* Merge a cell with the right neighbor. The value of the cell to the right won't be displayed.
* @param table table pointer to a Table object
* @param row id of the row [0 .. row_cnt -1]
* @param col id of the column [0 .. col_cnt -1]
* @param en true: merge right; false: don't merge right
*/
void lv_table_set_cell_merge_right(lv_obj_t * table, uint16_t row, uint16_t col, bool en)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
if(row >= ext->row_cnt || col >= ext->col_cnt) {
LV_LOG_WARN("lv_table_set_cell_merge_right: invalid row or column");
return;
}
uint32_t cell = row * ext->col_cnt + col;
if(ext->cell_data[cell] == NULL) {
ext->cell_data[cell] = lv_mem_alloc(2); /*+1: trailing '\0; +1: format byte*/
ext->cell_data[cell][0] = 0;
ext->cell_data[cell][1] = '\0';
}
lv_table_cell_format_t format;
format.format_byte = ext->cell_data[cell][0];
format.right_merge = en ? 1 : 0;
ext->cell_data[cell][0] = format.format_byte;
refr_size(table);
}
/**
* Set a style of a table.
* @param table pointer to table object
* @param type which style should be set
* @param style pointer to a style
*/
void lv_table_set_style(lv_obj_t * table, lv_table_style_t type, lv_style_t * style)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
switch(type) {
case LV_TABLE_STYLE_BG:
lv_obj_set_style(table, style);
refr_size(table);
break;
case LV_TABLE_STYLE_CELL1:
ext->cell_style[0] = style;
refr_size(table);
break;
case LV_TABLE_STYLE_CELL2:
ext->cell_style[1] = style;
refr_size(table);
break;
case LV_TABLE_STYLE_CELL3:
ext->cell_style[2] = style;
refr_size(table);
break;
case LV_TABLE_STYLE_CELL4:
ext->cell_style[3] = style;
refr_size(table);
break;
}
}
/*=====================
* Getter functions
*====================*/
/**
* Get the value of a cell.
* @param table pointer to a Table object
* @param row id of the row [0 .. row_cnt -1]
* @param col id of the column [0 .. col_cnt -1]
* @return text in the cell
*/
const char * lv_table_get_cell_value(lv_obj_t * table, uint16_t row, uint16_t col)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
if(row >= ext->row_cnt || col >= ext->col_cnt) {
LV_LOG_WARN("lv_table_set_cell_value: invalid row or column");
return "";
}
uint32_t cell = row * ext->col_cnt + col;
if(ext->cell_data[cell] == NULL) return "";
return &ext->cell_data[cell][1]; /*Skip the format byte*/
}
/**
* Get the number of rows.
* @param table table pointer to a Table object
* @return number of rows.
*/
uint16_t lv_table_get_row_cnt(lv_obj_t * table)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
return ext->row_cnt;
}
/**
* Get the number of columns.
* @param table table pointer to a Table object
* @return number of columns.
*/
uint16_t lv_table_get_col_cnt(lv_obj_t * table)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
return ext->col_cnt;
}
/**
* Get the width of a column
* @param table table pointer to a Table object
* @param col_id id of the column [0 .. LV_TABLE_COL_MAX -1]
* @return width of the column
*/
lv_coord_t lv_table_get_col_width(lv_obj_t * table, uint16_t col_id)
{
if(col_id >= LV_TABLE_COL_MAX) {
LV_LOG_WARN("lv_table_set_col_width: too big 'col_id'. Must be < LV_TABLE_COL_MAX.");
return 0;
}
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
return ext->col_w[col_id];
}
/**
* Get the text align of a cell
* @param table pointer to a Table object
* @param row id of the row [0 .. row_cnt -1]
* @param col id of the column [0 .. col_cnt -1]
* @return LV_LABEL_ALIGN_LEFT (default in case of error) or LV_LABEL_ALIGN_CENTER or LV_LABEL_ALIGN_RIGHT
*/
lv_label_align_t lv_table_get_cell_align(lv_obj_t * table, uint16_t row, uint16_t col)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
if(row >= ext->row_cnt || col >= ext->col_cnt) {
LV_LOG_WARN("lv_table_set_cell_align: invalid row or column");
return LV_LABEL_ALIGN_LEFT; /*Just return with something*/
}
uint32_t cell = row * ext->col_cnt + col;
if(ext->cell_data[cell] == NULL) return LV_LABEL_ALIGN_LEFT; /*Just return with something*/
else {
lv_table_cell_format_t format;
format.format_byte = ext->cell_data[cell][0];
return format.align;
}
}
/**
* Get the type of a cell
* @param table pointer to a Table object
* @param row id of the row [0 .. row_cnt -1]
* @param col id of the column [0 .. col_cnt -1]
* @return 1,2,3 or 4
*/
lv_label_align_t lv_table_get_cell_type(lv_obj_t * table, uint16_t row, uint16_t col)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
if(row >= ext->row_cnt || col >= ext->col_cnt) {
LV_LOG_WARN("lv_table_get_cell_type: invalid row or column");
return 1; /*Just return with something*/
}
uint32_t cell = row * ext->col_cnt + col;
if(ext->cell_data[cell] == NULL) return 1; /*Just return with something*/
else {
lv_table_cell_format_t format;
format.format_byte = ext->cell_data[cell][0];
return format.type + 1; /*0,1,2,3 is stored but user sees 1,2,3,4*/
}
}
/**
* Get the crop property of a cell
* @param table pointer to a Table object
* @param row id of the row [0 .. row_cnt -1]
* @param col id of the column [0 .. col_cnt -1]
* @return true: text crop enabled; false: disabled
*/
lv_label_align_t lv_table_get_cell_crop(lv_obj_t * table, uint16_t row, uint16_t col)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
if(row >= ext->row_cnt || col >= ext->col_cnt) {
LV_LOG_WARN("lv_table_get_cell_crop: invalid row or column");
return false; /*Just return with something*/
}
uint32_t cell = row * ext->col_cnt + col;
if(ext->cell_data[cell] == NULL) return false; /*Just return with something*/
else {
lv_table_cell_format_t format;
format.format_byte = ext->cell_data[cell][0];
return format.crop;
}
}
/**
* Get the cell merge attribute.
* @param table table pointer to a Table object
* @param row id of the row [0 .. row_cnt -1]
* @param col id of the column [0 .. col_cnt -1]
* @return true: merge right; false: don't merge right
*/
bool lv_table_get_cell_merge_right(lv_obj_t * table, uint16_t row, uint16_t col)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
if(row >= ext->row_cnt || col >= ext->col_cnt) {
LV_LOG_WARN("lv_table_get_cell_merge_right: invalid row or column");
return false;
}
uint32_t cell = row * ext->col_cnt + col;
if(ext->cell_data[cell] == NULL) return false;
else {
lv_table_cell_format_t format;
format.format_byte = ext->cell_data[cell][0];
return format.right_merge ? true : false;
}
}
/**
* Get style of a table.
* @param table pointer to table object
* @param type which style should be get
* @return style pointer to the style
*/
lv_style_t * lv_table_get_style(const lv_obj_t * table, lv_table_style_t type)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
lv_style_t * style = NULL;
switch(type) {
case LV_TABLE_STYLE_BG:
style = lv_obj_get_style(table);
break;
case LV_TABLE_STYLE_CELL1:
style = ext->cell_style[0];
break;
case LV_TABLE_STYLE_CELL2:
style = ext->cell_style[1];
break;
case LV_TABLE_STYLE_CELL3:
style = ext->cell_style[2];
break;
case LV_TABLE_STYLE_CELL4:
style = ext->cell_style[3];
break;
default:
return NULL;
}
return style;
}
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Handle the drawing related tasks of the tables
* @param table 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_table_design(lv_obj_t * table, 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) {
ancestor_scrl_design(table, mask, mode);
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
lv_style_t * bg_style = lv_obj_get_style(table);
lv_style_t * cell_style;
lv_coord_t h_row;
lv_point_t txt_size;
lv_area_t cell_area;
lv_area_t txt_area;
lv_txt_flag_t txt_flags;
lv_opa_t opa_scale = lv_obj_get_opa_scale(table);
uint16_t col;
uint16_t row;
uint16_t cell = 0;
cell_area.y2 = table->coords.y1 + bg_style->body.padding.ver;
for(row = 0; row < ext->row_cnt; row++) {
h_row = get_row_height(table, row);
cell_area.y1 = cell_area.y2;
cell_area.y2 = cell_area.y1 + h_row;
cell_area.x2 = table->coords.x1 + bg_style->body.padding.hor;
for(col = 0; col < ext->col_cnt; col++) {
lv_table_cell_format_t format;
if(ext->cell_data[cell]) {
format.format_byte = ext->cell_data[cell][0];
} else {
format.right_merge = 0;
format.align = LV_LABEL_ALIGN_LEFT;
format.type = 0;
format.crop = 1;
}
cell_style = ext->cell_style[format.type];
cell_area.x1 = cell_area.x2;
cell_area.x2 = cell_area.x1 + ext->col_w[col];
uint16_t col_merge = 0;
for(col_merge = 0; col_merge + col < ext->col_cnt - 1; col_merge ++) {
if(ext->cell_data[cell + col_merge] != NULL) {
format.format_byte = ext->cell_data[cell + col_merge][0];
if(format.right_merge) cell_area.x2 += ext->col_w[col + col_merge + 1];
else break;
} else {
break;
}
}
lv_draw_rect(&cell_area, mask, cell_style, opa_scale);
if(ext->cell_data[cell]) {
txt_area.x1 = cell_area.x1 + cell_style->body.padding.hor;
txt_area.x2 = cell_area.x2 - cell_style->body.padding.hor;
txt_area.y1 = cell_area.y1 + cell_style->body.padding.ver;
txt_area.y2 = cell_area.y2 - cell_style->body.padding.ver;
/*Align the content to the middle if not cropped*/
if(format.crop == 0) {
txt_flags = LV_TXT_FLAG_NONE;
} else {
txt_flags = LV_TXT_FLAG_EXPAND;
}
lv_txt_get_size(&txt_size, ext->cell_data[cell] + 1, cell_style->text.font,
cell_style->text.letter_space, cell_style->text.line_space, lv_area_get_width(&txt_area), txt_flags);
/*Align the content to the middle if not cropped*/
if(format.crop == 0) {
txt_area.y1 = cell_area.y1 + h_row / 2 - txt_size.y / 2;
txt_area.y2 = cell_area.y1 + h_row / 2 + txt_size.y / 2;
}
switch(format.align) {
default:
case LV_LABEL_ALIGN_LEFT:
txt_flags |= LV_TXT_FLAG_NONE;
break;
case LV_LABEL_ALIGN_RIGHT:
txt_flags |= LV_TXT_FLAG_RIGHT;
break;
case LV_LABEL_ALIGN_CENTER:
txt_flags |= LV_TXT_FLAG_CENTER;
break;
}
lv_area_t label_mask;
bool label_mask_ok;
label_mask_ok = lv_area_intersect(&label_mask, mask, &cell_area);
if(label_mask_ok) {
lv_draw_label(&txt_area, &label_mask, cell_style, opa_scale, ext->cell_data[cell] + 1, txt_flags, NULL);
}
/*Draw lines after '\n's*/
lv_point_t p1;
lv_point_t p2;
p1.x = cell_area.x1;
p2.x = cell_area.x2;
uint16_t i;
for(i = 1; ext->cell_data[cell][i] != '\0'; i++) {
if(ext->cell_data[cell][i] == '\n') {
ext->cell_data[cell][i] = '\0';
lv_txt_get_size(&txt_size, ext->cell_data[cell] + 1, cell_style->text.font,
cell_style->text.letter_space, cell_style->text.line_space, lv_area_get_width(&txt_area), txt_flags);
p1.y = txt_area.y1 + txt_size.y + cell_style->text.line_space / 2;
p2.y = txt_area.y1 + txt_size.y + cell_style->text.line_space / 2;
lv_draw_line(&p1, &p2, mask, cell_style, opa_scale);
ext->cell_data[cell][i] = '\n';
}
}
}
cell += col_merge + 1;
col += col_merge;
}
}
}
/*Post draw when the children are drawn*/
else if(mode == LV_DESIGN_DRAW_POST) {
}
return true;
}
/**
* Signal function of the table
* @param table pointer to a table 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_table_signal(lv_obj_t * table, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = ancestor_signal(table, sign, param);
if(res != LV_RES_OK) return res;
if(sign == LV_SIGNAL_CLEANUP) {
/*Free the cell texts*/
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
uint16_t cell;
for(cell = 0; cell < ext->col_cnt * ext->row_cnt; cell++) {
if(ext->cell_data[cell]) {
lv_mem_free(ext->cell_data[cell]);
ext->cell_data[cell] = NULL;
}
}
} 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_table";
}
return res;
}
static void refr_size(lv_obj_t * table)
{
lv_coord_t h = 0;
lv_coord_t w = 0;
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
uint16_t i;
for(i= 0; i < ext->col_cnt; i++) {
w += ext->col_w[i];
}
for(i= 0; i < ext->row_cnt; i++) {
h += get_row_height(table, i);
}
lv_style_t * bg_style = lv_obj_get_style(table);
w += bg_style->body.padding.hor * 2;
h += bg_style->body.padding.ver * 2;
lv_obj_set_size(table, w + 1, h + 1);
lv_obj_invalidate(table);
}
static lv_coord_t get_row_height(lv_obj_t * table, uint16_t row_id)
{
lv_table_ext_t * ext = lv_obj_get_ext_attr(table);
lv_point_t txt_size;
lv_coord_t txt_w;
lv_style_t * cell_style;
uint16_t row_start = row_id * ext->col_cnt;
uint16_t cell;
uint16_t col;
lv_coord_t h_max = lv_font_get_height(ext->cell_style[0]->text.font) + 2 * ext->cell_style[0]->body.padding.ver;
for(cell = row_start, col = 0; cell < row_start + ext->col_cnt; cell++, col ++) {
if(ext->cell_data[cell] != NULL) {
txt_w = ext->col_w[col];
uint16_t col_merge = 0;
for(col_merge = 0; col_merge + col < ext->col_cnt - 1; col_merge ++) {
if(ext->cell_data[cell + col_merge] != NULL) {
lv_table_cell_format_t format;
format.format_byte = ext->cell_data[cell + col_merge][0];
if(format.right_merge) txt_w += ext->col_w[col + col_merge + 1];
else break;
} else {
break;
}
}
lv_table_cell_format_t format;
format.format_byte = ext->cell_data[cell][0];
cell_style = ext->cell_style[format.type];
/*With text crop assume 1 line*/
if(format.crop) {
h_max = LV_MATH_MAX(lv_font_get_height(cell_style->text.font) + 2 * cell_style->body.padding.ver, h_max);
}
/*Without text crop calculate the height of the text in the cell*/
else {
txt_w -= 2 * cell_style->body.padding.hor;
lv_txt_get_size(&txt_size, ext->cell_data[cell] + 1, cell_style->text.font,
cell_style->text.letter_space, cell_style->text.line_space, txt_w, LV_TXT_FLAG_NONE);
h_max = LV_MATH_MAX(txt_size.y + 2 * cell_style->body.padding.ver, h_max);
cell += col_merge;
col += col_merge;
}
}
}
return h_max;
}
#endif
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