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https://github.com/lvgl/lvgl.git
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122 lines
3.2 KiB
C
122 lines
3.2 KiB
C
/**
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* @file lv_cont.h
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*
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*/
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#ifndef LV_CONT_H
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#define LV_CONT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#include "lv_conf.h"
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#if USE_LV_CONT != 0
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#include "../lv_obj/lv_obj.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/*Layout options*/
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typedef enum
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{
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LV_CONT_LAYOUT_OFF = 0,
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LV_CONT_LAYOUT_CENTER,
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LV_CONT_LAYOUT_COL_L, /*Column left align*/
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LV_CONT_LAYOUT_COL_M, /*Column middle align*/
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LV_CONT_LAYOUT_COL_R, /*Column right align*/
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LV_CONT_LAYOUT_ROW_T, /*Row top align*/
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LV_CONT_LAYOUT_ROW_M, /*Row middle align*/
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LV_CONT_LAYOUT_ROW_B, /*Row bottom align*/
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LV_CONT_LAYOUT_PRETTY, /*Put as many object as possible in row and begin a new row*/
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LV_CONT_LAYOUT_GRID, /*Align same-sized object into a grid*/
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}lv_cont_layout_t;
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typedef struct
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{
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/*Inherited from 'base_obj' so no inherited ext. */ /*Ext. of ancestor*/
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/*New data for this type */
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uint8_t layout :4; /*A layout from 'lv_cont_layout_t' enum*/
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uint8_t hor_fit :1; /*1: Enable horizontal fit to involve all children*/
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uint8_t ver_fit :1; /*1: Enable horizontal fir to involve all children*/
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}lv_cont_ext_t;
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**
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* Create a container objects
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* @param par pointer to an object, it will be the parent of the new container
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* @param copy pointer to a container object, if not NULL then the new object will be copied from it
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* @return pointer to the created container
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*/
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lv_obj_t * lv_cont_create(lv_obj_t * par, lv_obj_t * copy);
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/**
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* Signal function of the container
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* @param cont pointer to a container object
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* @param sign a signal type from lv_signal_t enum
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* @param param pointer to a signal specific variable
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*/
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bool lv_cont_signal(lv_obj_t * cont, lv_signal_t sign, void * param);
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/**
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* Set the layout on a container
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* @param cont pointer to a container object
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* @param layout a layout from 'lv_cont_layout_t'
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*/
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void lv_cont_set_layout(lv_obj_t * cont, lv_cont_layout_t layout);
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/**
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* Enable the horizontal or vertical fit.
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* The container size will be set to involve the children horizontally or vertically.
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* @param cont pointer to a container object
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* @param hor_en true: enable the horizontal padding
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* @param ver_en true: enable the vertical padding
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*/
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void lv_cont_set_fit(lv_obj_t * cont, bool hor_en, bool ver_en);
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/**
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* Get the layout of a container
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* @param cont pointer to container object
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* @return the layout from 'lv_cont_layout_t'
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*/
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lv_cont_layout_t lv_cont_get_layout(lv_obj_t * cont);
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/**
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* Get horizontal fit enable attribute of a container
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* @param cont pointer to a container object
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* @return true: horizontal fit is enabled; false: disabled
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*/
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bool lv_cont_get_fit_hor(lv_obj_t * cont);
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/**
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* Get vertical fit enable attribute of a button
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* @param btn pointer to a button object
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* @return true: vertical padding is enabled; false: disabled
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*/
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bool lv_cont_get_fit_ver(lv_obj_t * cont);
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/**********************
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* MACROS
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**********************/
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#endif /*USE_LV_CONT*/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /*LV_CONT_H*/
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