mirror of
https://github.com/lvgl/lvgl.git
synced 2025-01-14 06:42:58 +08:00
232 lines
7.1 KiB
C
232 lines
7.1 KiB
C
/**
|
|
* @file lv_group.h
|
|
*
|
|
*/
|
|
|
|
#ifndef LV_GROUP_H
|
|
#define LV_GROUP_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*********************
|
|
* INCLUDES
|
|
*********************/
|
|
#ifdef LV_CONF_INCLUDE_SIMPLE
|
|
#include "lv_conf.h"
|
|
#else
|
|
#include "../../lv_conf.h"
|
|
#endif
|
|
|
|
#include "lv_obj.h"
|
|
|
|
/*********************
|
|
* DEFINES
|
|
*********************/
|
|
/*Predefined keys to control the focused object via lv_group_send(group, c)*/
|
|
/*For compatibility in signal function define the keys regardless to LV_GROUP*/
|
|
#define LV_GROUP_KEY_UP 17 /*0x11*/
|
|
#define LV_GROUP_KEY_DOWN 18 /*0x12*/
|
|
#define LV_GROUP_KEY_RIGHT 19 /*0x13*/
|
|
#define LV_GROUP_KEY_LEFT 20 /*0x14*/
|
|
#define LV_GROUP_KEY_ESC 27 /*0x1B*/
|
|
#define LV_GROUP_KEY_DEL 28 /*0x1C*/
|
|
#define LV_GROUP_KEY_ENTER 10 /*0x0A, '\n'*/
|
|
#define LV_GROUP_KEY_NEXT 9 /*0x09, '\t'*/
|
|
#define LV_GROUP_KEY_PREV 11 /*0x0B, '*/
|
|
|
|
#if USE_LV_GROUP != 0
|
|
/**********************
|
|
* TYPEDEFS
|
|
**********************/
|
|
struct _lv_group_t;
|
|
|
|
typedef void (*lv_group_style_mod_func_t)(lv_style_t *);
|
|
typedef void (*lv_group_focus_cb_t)(struct _lv_group_t *);
|
|
|
|
typedef struct _lv_group_t
|
|
{
|
|
lv_ll_t obj_ll; /*Linked list to store the objects in the group */
|
|
lv_obj_t ** obj_focus; /*The object in focus*/
|
|
lv_group_style_mod_func_t style_mod; /*A function which modifies the style of the focused object*/
|
|
lv_group_style_mod_func_t style_mod_edit;/*A function which modifies the style of the focused object*/
|
|
lv_group_focus_cb_t focus_cb; /*A function to call when a new object is focused (optional)*/
|
|
lv_style_t style_tmp; /*Stores the modified style of the focused object */
|
|
uint8_t frozen :1; /*1: can't focus to new object*/
|
|
uint8_t edit_mode_en :1; /*1: By the long press of `LV_GROP_KEY_ENTER` the object can go to edit mode*/
|
|
uint8_t editing :1; /*1: Edit mode, 0: Navigate mode*/
|
|
uint8_t click_focus :1; /*1: If an object in a group is clicked by an indev then it will be focused */
|
|
} lv_group_t;
|
|
|
|
/**********************
|
|
* GLOBAL PROTOTYPES
|
|
**********************/
|
|
|
|
/**
|
|
* Create a new object group
|
|
* @return pointer to the new object group
|
|
*/
|
|
lv_group_t * lv_group_create(void);
|
|
|
|
/**
|
|
* Delete a group object
|
|
* @param group pointer to a group
|
|
*/
|
|
void lv_group_del(lv_group_t * group);
|
|
|
|
/**
|
|
* Add an object to a group
|
|
* @param group pointer to a group
|
|
* @param obj pointer to an object to add
|
|
*/
|
|
void lv_group_add_obj(lv_group_t * group, lv_obj_t * obj);
|
|
|
|
/**
|
|
* Remove an object from its group
|
|
* @param obj pointer to an object to remove
|
|
*/
|
|
void lv_group_remove_obj(lv_obj_t * obj);
|
|
|
|
/**
|
|
* Focus on an object (defocus the current)
|
|
* @param obj pointer to an object to focus on
|
|
*/
|
|
void lv_group_focus_obj(lv_obj_t * obj);
|
|
|
|
/**
|
|
* Focus the next object in a group (defocus the current)
|
|
* @param group pointer to a group
|
|
*/
|
|
void lv_group_focus_next(lv_group_t * group);
|
|
|
|
/**
|
|
* Focus the previous object in a group (defocus the current)
|
|
* @param group pointer to a group
|
|
*/
|
|
void lv_group_focus_prev(lv_group_t * group);
|
|
|
|
/**
|
|
* Do not let to change the focus from the current object
|
|
* @param group pointer to a group
|
|
* @param en true: freeze, false: release freezing (normal mode)
|
|
*/
|
|
void lv_group_focus_freeze(lv_group_t * group, bool en);
|
|
|
|
/**
|
|
* Send a control character to the focuses object of a group
|
|
* @param group pointer to a group
|
|
* @param c a character (use LV_GROUP_KEY_.. to navigate)
|
|
*/
|
|
void lv_group_send_data(lv_group_t * group, uint32_t c);
|
|
|
|
/**
|
|
* Set a function for a group which will modify the object's style if it is in focus
|
|
* @param group pointer to a group
|
|
* @param style_mod_func the style modifier function pointer
|
|
*/
|
|
void lv_group_set_style_mod_cb(lv_group_t * group, lv_group_style_mod_func_t style_mod_func);
|
|
|
|
/**
|
|
* Set a function for a group which will modify the object's style if it is in focus in edit mode
|
|
* @param group pointer to a group
|
|
* @param style_mod_func the style modifier function pointer
|
|
*/
|
|
void lv_group_set_style_mod_edit_cb(lv_group_t * group, lv_group_style_mod_func_t style_mod_func);
|
|
|
|
/**
|
|
* Set a function for a group which will be called when a new object is focused
|
|
* @param group pointer to a group
|
|
* @param focus_cb the call back function or NULL if unused
|
|
*/
|
|
void lv_group_set_focus_cb(lv_group_t * group, lv_group_focus_cb_t focus_cb);
|
|
|
|
/**
|
|
* Enable the switching between edit and navigate mode on long press of LV_GROUP_KEY_ENTER.
|
|
* User can get the current mode and decide the whether to send
|
|
* LV_GROUP_KEY_PREV/NEXT or LV_GROUP_KEY_LEFT/RIGHT on left/right button.
|
|
* useful if there is only one encoder to navigate,
|
|
* (push: ENTER; long push: mode switch; left/right: focus or edit)
|
|
* @param group pointer to group
|
|
* @param en true or false to enable or disable this feature.
|
|
*/
|
|
void lv_group_set_edit_enable(lv_group_t * group, bool en);
|
|
|
|
/**
|
|
* Manually set the current mode (edit or navigate).
|
|
* Edit mode needs to be enabled with `lv_group_set_edit_enable`.
|
|
* @param group pointer to group
|
|
* @param edit: true: edit mode; false: navigate mode
|
|
*/
|
|
void lv_group_set_editing(lv_group_t * group, bool edit);
|
|
|
|
/**
|
|
* Set the `click_focus` attribute. If enabled then the object will be focused then it is clicked.
|
|
* @param group pointer to group
|
|
* @param en: true: enable `click_focus`
|
|
*/
|
|
void lv_group_set_click_focus(lv_group_t * group, bool en);
|
|
|
|
/**
|
|
* Modify a style with the set 'style_mod' function. The input style remains unchanged.
|
|
* @param group pointer to group
|
|
* @param style pointer to a style to modify
|
|
* @return a copy of the input style but modified with the 'style_mod' function
|
|
*/
|
|
lv_style_t * lv_group_mod_style(lv_group_t * group, const lv_style_t * style);
|
|
|
|
/**
|
|
* Get the focused object or NULL if there isn't one
|
|
* @param group pointer to a group
|
|
* @return pointer to the focused object
|
|
*/
|
|
lv_obj_t * lv_group_get_focused(lv_group_t * group);
|
|
|
|
/**
|
|
* Get a the style modifier function of a group
|
|
* @param group pointer to a group
|
|
* @return pointer to the style modifier function
|
|
*/
|
|
lv_group_style_mod_func_t lv_group_get_style_mod_cb(lv_group_t * group);
|
|
|
|
/**
|
|
* Get a the style modifier function of a group in edit mode
|
|
* @param group pointer to a group
|
|
* @return pointer to the style modifier function
|
|
*/
|
|
lv_group_style_mod_func_t lv_group_get_style_mod_edit_cb(lv_group_t * group);
|
|
|
|
/**
|
|
* Get the focus callback function of a group
|
|
* @param group pointer to a group
|
|
* @return the call back function or NULL if not set
|
|
*/
|
|
lv_group_focus_cb_t lv_group_get_focus_cb(lv_group_t * group);
|
|
|
|
/**
|
|
* Get the current mode (edit or navigate).
|
|
* @param group pointer to group
|
|
* @return true: edit mode; false: navigate mode
|
|
*/
|
|
bool lv_group_get_editing(lv_group_t * group);
|
|
|
|
/**
|
|
* Get the `click_focus` attribute.
|
|
* @param group pointer to group
|
|
* @return true: `click_focus` is enabled; false: disabled
|
|
*/
|
|
bool lv_group_get_click_focus(lv_group_t * group);
|
|
|
|
|
|
/**********************
|
|
* MACROS
|
|
**********************/
|
|
|
|
#endif /*USE_LV_GROUP != 0*/
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /*LV_GROUP_H*/
|