lvgl_cpp/lvgl/widgets/lv_table.h

211 lines
6.0 KiB
C

/**
* @file lv_table.h
*
*/
#ifndef LV_TABLE_H
#define LV_TABLE_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../lv_conf_internal.h"
#if LV_USE_TABLE != 0
/*Testing of dependencies*/
#if LV_USE_LABEL == 0
#error "lv_table: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)"
#endif
#include "../core/lv_obj.h"
#include "lv_label.h"
/*********************
* DEFINES
*********************/
#define LV_TABLE_CELL_NONE 0XFFFF
LV_EXPORT_CONST_INT(LV_TABLE_CELL_NONE);
/**********************
* TYPEDEFS
**********************/
enum {
LV_TABLE_CELL_CTRL_MERGE_RIGHT = 1 << 0,
LV_TABLE_CELL_CTRL_TEXT_CROP = 1 << 1,
LV_TABLE_CELL_CTRL_CUSTOM_1 = 1 << 4,
LV_TABLE_CELL_CTRL_CUSTOM_2 = 1 << 5,
LV_TABLE_CELL_CTRL_CUSTOM_3 = 1 << 6,
LV_TABLE_CELL_CTRL_CUSTOM_4 = 1 << 7,
};
typedef uint8_t lv_table_cell_ctrl_t;
/*Data of table*/
typedef struct {
lv_obj_t obj;
uint16_t col_cnt;
uint16_t row_cnt;
char ** cell_data;
lv_coord_t * row_h;
lv_coord_t * col_w;
uint16_t col_act;
uint16_t row_act;
} lv_table_t;
extern const lv_obj_class_t lv_table_class;
/**
* `type` field in `lv_obj_draw_part_dsc_t` if `class_p = lv_table_class`
* Used in `LV_EVENT_DRAW_PART_BEGIN` and `LV_EVENT_DRAW_PART_END`
*/
typedef enum {
LV_TABLE_DRAW_PART_CELL, /**< A cell*/
} lv_table_draw_part_type_t;
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Create a table object
* @param parent pointer to an object, it will be the parent of the new table
* @return pointer to the created table
*/
lv_obj_t * lv_table_create(lv_obj_t * parent);
/*=====================
* Setter functions
*====================*/
/**
* Set the value of a cell.
* @param obj 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.
* @note New roes/columns are added automatically if required
*/
void lv_table_set_cell_value(lv_obj_t * obj, uint16_t row, uint16_t col, const char * txt);
/**
* Set the value of a cell. Memory will be allocated to store the text by the table.
* @param obj 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 fmt `printf`-like format
* @note New roes/columns are added automatically if required
*/
void lv_table_set_cell_value_fmt(lv_obj_t * obj, uint16_t row, uint16_t col, const char * fmt, ...);
/**
* Set the number of rows
* @param obj table pointer to a Table object
* @param row_cnt number of rows
*/
void lv_table_set_row_cnt(lv_obj_t * obj, uint16_t row_cnt);
/**
* Set the number of columns
* @param obj table pointer to a Table object
* @param col_cnt number of columns.
*/
void lv_table_set_col_cnt(lv_obj_t * obj, uint16_t col_cnt);
/**
* Set the width of a column
* @param obj 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 * obj, uint16_t col_id, lv_coord_t w);
/**
* Add control bits to the cell.
* @param obj 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 ctrl OR-ed values from ::lv_table_cell_ctrl_t
*/
void lv_table_add_cell_ctrl(lv_obj_t * obj, uint16_t row, uint16_t col, lv_table_cell_ctrl_t ctrl);
/**
* Clear control bits of the cell.
* @param obj 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 ctrl OR-ed values from ::lv_table_cell_ctrl_t
*/
void lv_table_clear_cell_ctrl(lv_obj_t * obj, uint16_t row, uint16_t col, lv_table_cell_ctrl_t ctrl);
/*=====================
* Getter functions
*====================*/
/**
* Get the value of a cell.
* @param obj 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 * obj, uint16_t row, uint16_t col);
/**
* Get the number of rows.
* @param obj table pointer to a Table object
* @return number of rows.
*/
uint16_t lv_table_get_row_cnt(lv_obj_t * obj);
/**
* Get the number of columns.
* @param obj table pointer to a Table object
* @return number of columns.
*/
uint16_t lv_table_get_col_cnt(lv_obj_t * obj);
/**
* Get the width of a column
* @param obj table pointer to a Table object
* @param col 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 * obj, uint16_t col);
/**
* Get whether a cell has the control bits
* @param obj 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 ctrl OR-ed values from ::lv_table_cell_ctrl_t
* @return true: all control bits are set; false: not all control bits are set
*/
bool lv_table_has_cell_ctrl(lv_obj_t * obj, uint16_t row, uint16_t col, lv_table_cell_ctrl_t ctrl);
/**
* Get the selected cell (pressed and or focused)
* @param obj pointer to a table object
* @param row pointer to variable to store the selected row (LV_TABLE_CELL_NONE: if no cell selected)
* @param col pointer to variable to store the selected column (LV_TABLE_CELL_NONE: if no cell selected)
*/
void lv_table_get_selected_cell(lv_obj_t * obj, uint16_t * row, uint16_t * col);
/**********************
* MACROS
**********************/
#endif /*LV_USE_TABLE*/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_TABLE_H*/