github-code/lvgl
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

prevent refresh after drag is no movement happened

Browse Source
This commit is contained in:
Gabor Kiss-Vamosi
2018-02-24 15:36:06 +01:00
parent f3e1df3997
commit 076540752b
3 changed files with 38 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
lv_core/lv_indev.c
View File

@@ -11,6 +11,7 @@
#include "../lv_hal/lv_hal_tick.h"
#include "../lv_core/lv_group.h"
#include "../lv_core/lv_refr.h"
#include "../lv_misc/lv_task.h"
#include "../lv_misc/lv_math.h"
#include "../lv_draw/lv_draw_rbasic.h"
@@ -646,9 +647,10 @@ static void indev_drag(lv_indev_proc_t * state)
/*Set new position if the vector is not zero*/
if(state->vect.x != 0 ||
state->vect.y != 0) {
/*Get the coordinates of the object end modify them*/
/*Get the coordinates of the object and modify them*/
lv_coord_t act_x = lv_obj_get_x(drag_obj);
lv_coord_t act_y = lv_obj_get_y(drag_obj);
uint16_t inv_buf_size = lv_refr_get_buf_size(); /*Get the number of currently invalidated areas*/
lv_obj_set_pos(drag_obj, act_x + state->vect.x, act_y + state->vect.y);
@@ -660,7 +662,11 @@ static void indev_drag(lv_indev_proc_t * state)
}
state->drag_in_prog = 1;
}
/*If the object didn't moved then clear the invalidated areas*/
else {
uint16_t new_inv_buf_size = lv_refr_get_buf_size();
lv_refr_pop_from_buf(new_inv_buf_size - inv_buf_size);
}
}
}
}

19
lv_core/lv_refr.c
View File

@@ -139,6 +139,25 @@ void lv_refr_set_round_cd(void(*cb)(lv_area_t*))
round_cb = cb;
}
/**
* Get the number of areas in the buffer
* @return number of invalid areas
*/
uint16_t lv_refr_get_buf_size(void)
{
return inv_buf_p;
}
/**
* Pop (delete) the last 'num' invalidated areas from the buffer
* @param num number of areas to delete
*/
void lv_refr_pop_from_buf(uint16_t num)
{
if(inv_buf_p < num) inv_buf_p = 0;
else inv_buf_p -= num;
}
/**********************
* STATIC FUNCTIONS
**********************/

11
lv_core/lv_refr.h
View File

@@ -65,6 +65,17 @@ void lv_refr_set_monitor_cb(void (*cb)(uint32_t, uint32_t));
*/
void lv_refr_set_round_cd(void(*cb)(lv_area_t*));
/**
* Get the number of areas in the buffer
* @return number of invalid areas
*/
uint16_t lv_refr_get_buf_size(void);
/**
* Pop (delete) the last 'num' invalidated areas from the buffer
* @param num number of areas to delete
*/
void lv_refr_pop_from_buf(uint16_t num);
/**********************
* STATIC FUNCTIONS
**********************/