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/**
* @file lv_flex.h
*
*/
#ifndef LV_FLEX_H
#define LV_FLEX_H
#ifdef __cplusplus
extern "C" {
#endif
/*********************
* INCLUDES
*********************/
#include "../../lv_conf_internal.h"
#include "../../misc/lv_area.h"
#if LV_USE_FLEX
/*********************
* DEFINES
*********************/
#define LV_FLEX_COLUMN (1 << 0)
#define LV_FLEX_WRAP (1 << 2)
#define LV_FLEX_REVERSE (1 << 3)
/**********************
* TYPEDEFS
**********************/
/*Can't include lv_obj.h because it includes this header file*/
typedef enum {
LV_FLEX_ALIGN_START,
LV_FLEX_ALIGN_END,
LV_FLEX_ALIGN_CENTER,
LV_FLEX_ALIGN_SPACE_EVENLY,
LV_FLEX_ALIGN_SPACE_AROUND,
LV_FLEX_ALIGN_SPACE_BETWEEN,
} lv_flex_align_t;
typedef enum {
LV_FLEX_FLOW_ROW = 0x00,
LV_FLEX_FLOW_COLUMN = LV_FLEX_COLUMN,
LV_FLEX_FLOW_ROW_WRAP = LV_FLEX_FLOW_ROW | LV_FLEX_WRAP,
LV_FLEX_FLOW_ROW_REVERSE = LV_FLEX_FLOW_ROW | LV_FLEX_REVERSE,
LV_FLEX_FLOW_ROW_WRAP_REVERSE = LV_FLEX_FLOW_ROW | LV_FLEX_WRAP | LV_FLEX_REVERSE,
LV_FLEX_FLOW_COLUMN_WRAP = LV_FLEX_FLOW_COLUMN | LV_FLEX_WRAP,
LV_FLEX_FLOW_COLUMN_REVERSE = LV_FLEX_FLOW_COLUMN | LV_FLEX_REVERSE,
LV_FLEX_FLOW_COLUMN_WRAP_REVERSE = LV_FLEX_FLOW_COLUMN | LV_FLEX_WRAP | LV_FLEX_REVERSE,
} lv_flex_flow_t;
/**********************
* GLOBAL VARIABLES
**********************/
/**********************
* GLOBAL PROTOTYPES
**********************/
/**
* Initialize a flex layout the default values
*/
void lv_flex_init(void);
/**
* Set how the item should flow
* @param obj pointer to an object. The parent must have flex layout else nothing will happen.
* @param flow an element of `lv_flex_flow_t`.
*/
void lv_obj_set_flex_flow(lv_obj_t * obj, lv_flex_flow_t flow);
/**
* Set how to place (where to align) the items and tracks
* @param obj pointer to an object. The parent must have flex layout else nothing will happen.
* @param main_place where to place the items on main axis (in their track). Any value of `lv_flex_align_t`.
* @param cross_place where to place the item in their track on the cross axis. `LV_FLEX_ALIGN_START/END/CENTER`
* @param track_cross_place where to place the tracks in the cross direction. Any value of `lv_flex_align_t`.
*/
void lv_obj_set_flex_align(lv_obj_t * obj, lv_flex_align_t main_place, lv_flex_align_t cross_place,
lv_flex_align_t track_cross_place);
/**
* Sets the width or height (on main axis) to grow the object in order fill the free space
* @param obj pointer to an object. The parent must have flex layout else nothing will happen.
* @param grow a value to set how much free space to take proportionally to other growing items.
*/
void lv_obj_set_flex_grow(lv_obj_t * obj, uint8_t grow);
/**********************
* MACROS
**********************/
#endif /*LV_USE_FLEX*/
#ifdef __cplusplus
} /*extern "C"*/
#endif
#endif /*LV_FLEX_H*/
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