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hekate/bdk/libs/lvgl/lv_objx/lv_tileview.c
CTCaer 185526d134 Introducing Bootloader Development Kit (BDK) 
BDK will allow developers to use the full collection of drivers,
with limited editing, if any, for making payloads for Nintendo Switch.

Using a single source for everything will also help decoupling
Switch specific code and easily port it to other Tegra X1/X1+ platforms.
And maybe even to lower targets.

Everything is now centrilized into bdk folder.
Every module or project can utilize it by simply including it.

This is just the start and it will continue to improve.
2020-06-14 15:25:21 +03:00

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/**
* @file lv_tileview.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_tileview.h"
#if USE_LV_TILEVIEW != 0
#include "lv_cont.h"
#include "../lv_themes/lv_theme.h"
/*********************
* DEFINES
*********************/
#if USE_LV_ANIMATION
# ifndef LV_TILEVIEW_ANIM_TIME
# define LV_TILEVIEW_ANIM_TIME 300 /*Animation time loading a tile [ms] (0: no animation) */
# endif
#else
# undef LV_TILEVIEW_ANIM_TIME
# define LV_TILEVIEW_ANIM_TIME 0 /*No animations*/
#endif
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static lv_res_t lv_tileview_signal(lv_obj_t * tileview, lv_signal_t sign, void * param);
static lv_res_t lv_tileview_scrl_signal(lv_obj_t * scrl, lv_signal_t sign, void * param);
static lv_res_t element_signal_func(lv_obj_t * element, lv_signal_t sign, void * param);
static void drag_end_handler(lv_obj_t * tileview);
static bool set_valid_drag_dirs(lv_obj_t * tileview);
/**********************
* STATIC VARIABLES
**********************/
static lv_signal_func_t ancestor_signal;
static lv_signal_func_t ancestor_scrl_signal;
static lv_design_func_t ancestor_design;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
/**
* Create a tileview object
* @param par pointer to an object, it will be the parent of the new tileview
* @param copy pointer to a tileview object, if not NULL then the new object will be copied from it
* @return pointer to the created tileview
*/
lv_obj_t * lv_tileview_create(lv_obj_t * par, const lv_obj_t * copy)
{
LV_LOG_TRACE("tileview create started");
/*Create the ancestor of tileview*/
lv_obj_t * new_tileview = lv_page_create(par, copy);
lv_mem_assert(new_tileview);
if(new_tileview == NULL) return NULL;
/*Allocate the tileview type specific extended data*/
lv_tileview_ext_t * ext = lv_obj_allocate_ext_attr(new_tileview, sizeof(lv_tileview_ext_t));
lv_mem_assert(ext);
if(ext == NULL) return NULL;
if(ancestor_signal == NULL) ancestor_signal = lv_obj_get_signal_func(new_tileview);
if(ancestor_scrl_signal == NULL) ancestor_scrl_signal = lv_obj_get_signal_func(lv_page_get_scrl(new_tileview));
if(ancestor_design == NULL) ancestor_design = lv_obj_get_design_func(new_tileview);
/*Initialize the allocated 'ext' */
ext->anim_time = LV_TILEVIEW_ANIM_TIME;
ext->action = NULL;
ext->act_id.x = 0;
ext->act_id.y = 0;
ext->valid_pos = NULL;
/*The signal and design functions are not copied so set them here*/
lv_obj_set_signal_func(new_tileview, lv_tileview_signal);
lv_obj_set_signal_func(lv_page_get_scrl(new_tileview), lv_tileview_scrl_signal);
/*Init the new tileview*/
if(copy == NULL) {
lv_obj_set_size(new_tileview, LV_HOR_RES, LV_VER_RES);
lv_obj_set_drag_throw(lv_page_get_scrl(new_tileview), false);
lv_page_set_scrl_fit(new_tileview, true, true);
/*Set the default styles*/
lv_theme_t * th = lv_theme_get_current();
if(th) {
lv_page_set_style(new_tileview, LV_PAGE_STYLE_BG, th->tileview.bg);
lv_page_set_style(new_tileview, LV_PAGE_STYLE_SCRL, th->tileview.scrl);
lv_page_set_style(new_tileview, LV_PAGE_STYLE_SB, th->tileview.sb);
} else {
lv_page_set_style(new_tileview, LV_PAGE_STYLE_BG, &lv_style_transp_tight);
lv_page_set_style(new_tileview, LV_PAGE_STYLE_SCRL, &lv_style_transp_tight);
}
}
/*Copy an existing tileview*/
else {
lv_tileview_ext_t * copy_ext = lv_obj_get_ext_attr(copy);
ext->act_id.x = copy_ext->act_id.x;
ext->act_id.y = copy_ext->act_id.y;
ext->action = copy_ext->action;
ext->anim_time = copy_ext->anim_time;
/*Refresh the style with new signal function*/
lv_obj_refresh_style(new_tileview);
}
LV_LOG_INFO("tileview created");
return new_tileview;
}
/*======================
* Add/remove functions
*=====================*/
/**
* Register an object on the tileview. The register object will able to slide the tileview
* @param element pointer to an object
*/
void lv_tileview_add_element(lv_obj_t * element)
{
lv_obj_set_free_ptr(element, lv_obj_get_signal_func(element));
lv_obj_set_signal_func(element, element_signal_func);
lv_obj_set_drag_parent(element, true);
}
/*=====================
* Setter functions
*====================*/
/**
* Set the valid position's indices. The scrolling will be possible only to these positions.
* @param tileview pointer to a Tileview object
* @param valid_pos array width the indices. E.g. `lv_point_t p[] = {{0,0}, {1,0}, {1,1}, {LV_COORD_MIN, LV_COORD_MIN}};`
* Must be closed with `{LV_COORD_MIN, LV_COORD_MIN}`. Only the pointer is saved so can't be a local variable.
*/
void lv_tileview_set_valid_positions(lv_obj_t * tileview, const lv_point_t * valid_pos)
{
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
ext->valid_pos = valid_pos;
}
/**
* Set the tile to be shown
* @param tileview pointer to a tileview object
* @param x column id (0, 1, 2...)
* @param y line id (0, 1, 2...)
* @param anim_en true: move with animation
*/
void lv_tileview_set_tile_act(lv_obj_t * tileview, lv_coord_t x, lv_coord_t y, bool anim_en)
{
#if USE_LV_ANIMATION == 0
anim_en = false;
#endif
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
uint16_t i;
bool valid = false;
for(i = 0; ext->valid_pos[i].x != LV_COORD_MIN; i++) {
if(ext->valid_pos[i].x == x && ext->valid_pos[i].y == y) {
valid = true;
}
}
if(valid == false) return; /*Don't load not valid tiles*/
lv_res_t res = LV_RES_OK;
if(ext->action) res = ext->action(tileview, x, y);
if(res != LV_RES_OK) return; /*Prevent the tile loading*/
ext->act_id.x = x;
ext->act_id.y = y;
lv_coord_t x_coord = -x * lv_obj_get_width(tileview);
lv_coord_t y_coord = -y * lv_obj_get_height(tileview);
lv_obj_t * scrl = lv_page_get_scrl(tileview);
if(anim_en) {
#if USE_LV_ANIMATION
lv_coord_t x_act = lv_obj_get_x(scrl);
lv_coord_t y_act = lv_obj_get_y(scrl);
lv_anim_t a;
a.var = scrl;
a.fp = (lv_anim_fp_t)lv_obj_set_x;
a.path = lv_anim_path_linear;
a.end_cb = NULL;
a.act_time = 0;
a.time = ext->anim_time;
a.playback = 0;
a.playback_pause = 0;
a.repeat = 0;
a.repeat_pause = 0;
if(x_coord != x_act) {
a.start = x_act;
a.end = x_coord;
lv_anim_create(&a);
}
if(y_coord != y_act) {
a.start = y_act;
a.end = y_coord;
a.fp = (lv_anim_fp_t)lv_obj_set_y;
lv_anim_create(&a);
}
#endif
} else {
lv_obj_set_pos(scrl, x_coord, y_coord);
}
}
void lv_tileview_set_tile_load_action(lv_obj_t * tileview, lv_tileview_action_t action)
{
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
ext->action = action;
}
/**
* Set a style of a tileview.
* @param tileview pointer to tileview object
* @param type which style should be set
* @param style pointer to a style
*/
void lv_tileview_set_style(lv_obj_t * tileview, lv_tileview_style_t type, lv_style_t * style)
{
switch(type) {
case LV_TILEVIEW_STYLE_BG:
lv_obj_set_style(tileview, style);
break;
}
}
/*=====================
* Getter functions
*====================*/
/*
* New object specific "get" functions come here
*/
/**
* Get style of a tileview.
* @param tileview pointer to tileview object
* @param type which style should be get
* @return style pointer to the style
*/
lv_style_t * lv_tileview_get_style(const lv_obj_t * tileview, lv_tileview_style_t type)
{
lv_style_t * style = NULL;
switch(type) {
case LV_TILEVIEW_STYLE_BG:
style = lv_obj_get_style(tileview);
break;
default:
style = NULL;
}
return style;
}
/*=====================
* Other functions
*====================*/
/*
* New object specific "other" functions come here
*/
/**********************
* STATIC FUNCTIONS
**********************/
/**
* Signal function of the tileview
* @param tileview pointer to a tileview object
* @param sign a signal type from lv_signal_t enum
* @param param pointer to a signal specific variable
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
*/
static lv_res_t lv_tileview_signal(lv_obj_t * tileview, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = ancestor_signal(tileview, sign, param);
if(res != LV_RES_OK) return res;
if(sign == LV_SIGNAL_CLEANUP) {
/*Nothing to cleanup. (No dynamically allocated memory in 'ext')*/
} else if(sign == LV_SIGNAL_GET_TYPE) {
lv_obj_type_t * buf = param;
uint8_t i;
for(i = 0; i < LV_MAX_ANCESTOR_NUM - 1; i++) { /*Find the last set data*/
if(buf->type[i] == NULL) break;
}
buf->type[i] = "lv_tileview";
}
return res;
}
/**
* Signal function of the tileview scrollable
* @param tileview pointer to the scrollable part of the tileview object
* @param sign a signal type from lv_signal_t enum
* @param param pointer to a signal specific variable
* @return LV_RES_OK: the object is not deleted in the function; LV_RES_INV: the object is deleted
*/
static lv_res_t lv_tileview_scrl_signal(lv_obj_t * scrl, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
res = ancestor_scrl_signal(scrl, sign, param);
if(res != LV_RES_OK) return res;
lv_obj_t * tileview = lv_obj_get_parent(scrl);
lv_style_t * style_bg = lv_tileview_get_style(tileview, LV_TILEVIEW_STYLE_BG);
/*Apply constraint on moving of the tileview*/
if(sign == LV_SIGNAL_CORD_CHG) {
lv_indev_t * indev = lv_indev_get_act();
if(indev) {
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
/*Set horizontal drag constraint if no vertical constraint an dragged to valid x direction */
if(ext->drag_ver == 0 &&
((ext->drag_right_en && indev->proc.drag_sum.x <= -LV_INDEV_DRAG_LIMIT) ||
(ext->drag_left_en && indev->proc.drag_sum.x >= LV_INDEV_DRAG_LIMIT))) {
ext->drag_hor = 1;
}
/*Set vertical drag constraint if no horizontal constraint an dragged to valid y direction */
if(ext->drag_hor == 0 &&
((ext->drag_bottom_en && indev->proc.drag_sum.y <= -LV_INDEV_DRAG_LIMIT) ||
(ext->drag_top_en && indev->proc.drag_sum.y >= LV_INDEV_DRAG_LIMIT))) {
ext->drag_ver = 1;
}
if(ext->drag_hor) {
ext->page.edge_flash.top_ip = 0;
ext->page.edge_flash.bottom_ip = 0;
}
if(ext->drag_ver) {
ext->page.edge_flash.right_ip = 0;
ext->page.edge_flash.left_ip = 0;
}
lv_coord_t x = lv_obj_get_x(scrl);
lv_coord_t y = lv_obj_get_y(scrl);
lv_coord_t h = lv_obj_get_height(tileview);
lv_coord_t w = lv_obj_get_width(tileview);
if(ext->drag_top_en == 0) {
if(y > -(ext->act_id.y * h) && indev->proc.vect.y > 0 && ext->drag_hor == 0) {
if(ext->page.edge_flash.enabled &&
ext->page.edge_flash.left_ip == 0 && ext->page.edge_flash.right_ip == 0 &&
ext->page.edge_flash.top_ip == 0 && ext->page.edge_flash.bottom_ip == 0) {
ext->page.edge_flash.top_ip = 1;
lv_page_start_edge_flash(tileview);
}
lv_obj_set_y(scrl, -ext->act_id.y * h + style_bg->body.padding.ver);
}
}
if(ext->drag_bottom_en == 0 && indev->proc.vect.y < 0 && ext->drag_hor == 0) {
if(y < -(ext->act_id.y * h)) {
if(ext->page.edge_flash.enabled &&
ext->page.edge_flash.left_ip == 0 && ext->page.edge_flash.right_ip == 0 &&
ext->page.edge_flash.top_ip == 0 && ext->page.edge_flash.bottom_ip == 0) {
ext->page.edge_flash.bottom_ip = 1;
lv_page_start_edge_flash(tileview);
}
}
lv_obj_set_y(scrl, -ext->act_id.y * h + style_bg->body.padding.ver);
}
if(ext->drag_left_en == 0) {
if(x > -(ext->act_id.x * w) && indev->proc.vect.x > 0 && ext->drag_ver == 0) {
if(ext->page.edge_flash.enabled &&
ext->page.edge_flash.left_ip == 0 && ext->page.edge_flash.right_ip == 0 &&
ext->page.edge_flash.top_ip == 0 && ext->page.edge_flash.bottom_ip == 0) {
ext->page.edge_flash.left_ip = 1;
lv_page_start_edge_flash(tileview);
}
lv_obj_set_x(scrl, -ext->act_id.x * w + style_bg->body.padding.hor);
}
}
if(ext->drag_right_en == 0 && indev->proc.vect.x < 0 && ext->drag_ver == 0) {
if(x < -(ext->act_id.x * w)) {
if(ext->page.edge_flash.enabled &&
ext->page.edge_flash.left_ip == 0 && ext->page.edge_flash.right_ip == 0 &&
ext->page.edge_flash.top_ip == 0 && ext->page.edge_flash.bottom_ip == 0) {
ext->page.edge_flash.right_ip = 1;
lv_page_start_edge_flash(tileview);
}
}
lv_obj_set_x(scrl, -ext->act_id.x * w + style_bg->body.padding.hor);
}
/*Apply the drag constraints*/
if(ext->drag_ver == 0) lv_obj_set_y(scrl, - ext->act_id.y * lv_obj_get_height(tileview) + style_bg->body.padding.ver);
if(ext->drag_hor == 0) lv_obj_set_x(scrl, - ext->act_id.x * lv_obj_get_width(tileview) + style_bg->body.padding.hor);
}
}
return res;
}
/**
* This function is applied called for the elements of the tileview. Used when the element is
* @param element
* @param sign
* @param param
* @return
*/
static lv_res_t element_signal_func(lv_obj_t * element, lv_signal_t sign, void * param)
{
lv_res_t res;
/* Include the ancient signal function */
lv_signal_func_t sign_func = lv_obj_get_free_ptr(element);
res = sign_func(element, sign, param);
if(res != LV_RES_OK) return res;
/*Initialize some variables on PRESS*/
if(sign == LV_SIGNAL_PRESSED) {
/*Get the tileview from the element*/
lv_obj_t * tileview = lv_obj_get_parent(element);
while(tileview) {
if(lv_obj_get_signal_func(tileview) != lv_tileview_signal) tileview = lv_obj_get_parent(tileview);
else break;
}
if(tileview) {
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
ext->drag_hor = 0;
ext->drag_ver = 0;
set_valid_drag_dirs(tileview);
}
}
/*Animate the tabview to the correct location on RELEASE*/
else if(sign == LV_SIGNAL_PRESS_LOST || sign == LV_SIGNAL_RELEASED) {
/*Get the tileview from the element*/
lv_obj_t * tileview = lv_obj_get_parent(element);
while(tileview) {
if(lv_obj_get_signal_func(tileview) != lv_tileview_signal) tileview = lv_obj_get_parent(tileview);
else break;
}
if(tileview) {
/* If the element was dragged and it moved the tileview finish the drag manually to
* let the tileview to finish the move.*/
lv_indev_t * indev = lv_indev_get_act();
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
if(indev->proc.drag_in_prog && (ext->drag_hor || ext->drag_ver)) {
lv_obj_t * drag_obj = element;
while(lv_obj_get_drag_parent(drag_obj)) {
drag_obj = lv_obj_get_parent(drag_obj);
if(drag_obj == NULL) break;
}
indev->proc.drag_in_prog = 0;
if(drag_obj) drag_obj->signal_func(drag_obj, LV_SIGNAL_DRAG_END, NULL);
}
drag_end_handler(tileview);
}
}
return res;
}
/**
* Called when the user releases an element of the tileview after dragging it.
* @param tileview pointer to a tileview object
*/
static void drag_end_handler(lv_obj_t * tileview)
{
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
lv_indev_t * indev = lv_indev_get_act();
lv_point_t point_act;
lv_indev_get_point(indev, &point_act);
lv_obj_t * scrl = lv_page_get_scrl(tileview);
lv_point_t p;
p.x = - (scrl->coords.x1 - LV_HOR_RES / 2);
p.y = - (scrl->coords.y1 - LV_VER_RES / 2);
/*From the drag vector (drag throw) predict the end position*/
if(ext->drag_hor) {
lv_point_t vect;
lv_indev_get_vect(indev, &vect);
lv_coord_t predict = 0;
while(vect.x != 0) {
predict += vect.x;
vect.x = vect.x * (100 - LV_INDEV_DRAG_THROW) / 100;
}
p.x -= predict;
}
else if(ext->drag_ver) {
lv_point_t vect;
lv_indev_get_vect(indev, &vect);
lv_coord_t predict = 0;
while(vect.y != 0) {
predict += vect.y;
vect.y = vect.y * (100 - LV_INDEV_DRAG_THROW) / 100;
}
p.y -= predict;
}
/*Get the index of the tile*/
p.x = p.x / lv_obj_get_width(tileview);
p.y = p.y / lv_obj_get_height(tileview);
/*Max +- move*/
lv_coord_t x_move = p.x - ext->act_id.x;
lv_coord_t y_move = p.y - ext->act_id.y;
if(x_move < -1) x_move = -1;
if(x_move > 1) x_move = 1;
if(y_move < -1) y_move = -1;
if(y_move > 1) y_move = 1;
/*Set the new tile*/
lv_tileview_set_tile_act(tileview, ext->act_id.x + x_move, ext->act_id.y + y_move,true);
}
static bool set_valid_drag_dirs(lv_obj_t * tileview)
{
lv_tileview_ext_t * ext = lv_obj_get_ext_attr(tileview);
if(ext->valid_pos == NULL) return false;
ext->drag_bottom_en = 0;
ext->drag_top_en = 0;
ext->drag_left_en = 0;
ext->drag_right_en = 0;
uint16_t i;
for(i = 0; ext->valid_pos[i].x != LV_COORD_MIN; i++) {
if(ext->valid_pos[i].x == ext->act_id.x && ext->valid_pos[i].y == ext->act_id.y - 1) ext->drag_top_en = 1;
if(ext->valid_pos[i].x == ext->act_id.x && ext->valid_pos[i].y == ext->act_id.y + 1) ext->drag_bottom_en = 1;
if(ext->valid_pos[i].x == ext->act_id.x - 1 && ext->valid_pos[i].y == ext->act_id.y) ext->drag_left_en = 1;
if(ext->valid_pos[i].x == ext->act_id.x + 1 && ext->valid_pos[i].y == ext->act_id.y) ext->drag_right_en = 1;
}
return true;
}
#endif
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