163 lines
4.7 KiB
C
163 lines
4.7 KiB
C
/**
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* @file lv_tileview.c
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*
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*/
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/*********************
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* INCLUDES
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*********************/
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#include "lv_tileview.h"
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#if LV_USE_TILEVIEW
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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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/**********************
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* STATIC PROTOTYPES
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**********************/
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static void lv_tileview_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
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static void lv_tileview_tile_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj);
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static void tileview_event_cb(lv_event_t * e);
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/**********************
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* STATIC VARIABLES
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**********************/
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const lv_obj_class_t lv_tileview_class = {.constructor_cb = lv_tileview_constructor,
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.base_class = &lv_obj_class,
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.instance_size = sizeof(lv_tileview_t)};
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const lv_obj_class_t lv_tileview_tile_class = {.constructor_cb = lv_tileview_tile_constructor,
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.base_class = &lv_obj_class,
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.instance_size = sizeof(lv_tileview_tile_t)};
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static lv_dir_t create_dir;
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static uint32_t create_col_id;
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static uint32_t create_row_id;
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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lv_obj_t * lv_tileview_create(lv_obj_t * parent)
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{
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return lv_obj_create_from_class(&lv_tileview_class, parent);
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}
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/*======================
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* Add/remove functions
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*=====================*/
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lv_obj_t * lv_tileview_add_tile(lv_obj_t * tv, uint8_t col_id, uint8_t row_id, lv_dir_t dir)
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{
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create_dir = dir;
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create_col_id = col_id;
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create_row_id = row_id;
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return lv_obj_create_from_class(&lv_tileview_tile_class, tv);
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}
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void lv_obj_set_tile(lv_obj_t * tv, lv_obj_t * tile_obj, lv_anim_enable_t anim_en)
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{
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lv_coord_t tx = lv_obj_get_x(tile_obj);
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lv_coord_t ty = lv_obj_get_y(tile_obj);
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lv_tileview_tile_t * tile = (lv_tileview_tile_t *)tile_obj;
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lv_obj_set_scroll_dir(tv, tile->dir);
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lv_obj_scroll_to(tv, tx, ty, anim_en);
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}
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void lv_obj_set_tile_id(lv_obj_t * tv, uint32_t col_id, uint32_t row_id, lv_anim_enable_t anim_en)
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{
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lv_coord_t w = lv_obj_get_width_fit(tv);
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lv_coord_t h = lv_obj_get_height_fit(tv);
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lv_coord_t tx = col_id * w;
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lv_coord_t ty = row_id * h;
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uint32_t i;
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for(i = 0; i < lv_obj_get_child_cnt(tv); i++) {
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lv_obj_t * tile_obj = lv_obj_get_child(tv, i);
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lv_coord_t x = lv_obj_get_x(tile_obj);
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lv_coord_t y = lv_obj_get_y(tile_obj);
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if(x == tx && y == ty) {
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lv_obj_set_tile(tv, tile_obj, anim_en);
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return;
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}
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}
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LV_LOG_WARN("No tile found with at (%d,%d) index", col_id, row_id);
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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static void lv_tileview_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
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{
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LV_UNUSED(class_p);
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lv_obj_set_size(obj, LV_PCT(100), LV_PCT(100));
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lv_obj_add_event_cb(obj, tileview_event_cb, NULL);
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lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ONE);
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lv_obj_set_scroll_snap_x(obj, LV_SCROLL_SNAP_CENTER);
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lv_obj_set_scroll_snap_y(obj, LV_SCROLL_SNAP_CENTER);
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}
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static void lv_tileview_tile_constructor(const lv_obj_class_t * class_p, lv_obj_t * obj)
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{
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LV_UNUSED(class_p);
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lv_obj_t * parent = lv_obj_get_parent(obj);
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lv_obj_set_size(obj, LV_PCT(100), LV_PCT(100));
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lv_obj_set_pos(obj, create_col_id * lv_obj_get_width_fit(parent), create_row_id * lv_obj_get_height_fit(parent));
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lv_tileview_tile_t * tile = (lv_tileview_tile_t *)obj;
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tile->dir = create_dir;
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if(create_col_id == 0 && create_row_id == 0) {
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lv_obj_set_scroll_dir(parent, create_dir);
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}
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}
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static void tileview_event_cb(lv_event_t * e)
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{
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lv_event_code_t code = lv_event_get_code(e);
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lv_obj_t * tv = lv_event_get_target(e);
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if(code == LV_EVENT_SCROLL_END) {
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lv_coord_t w = lv_obj_get_width_fit(tv);
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lv_coord_t h = lv_obj_get_height_fit(tv);
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lv_point_t scroll_end;
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lv_obj_get_scroll_end(tv, &scroll_end);
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lv_coord_t left = scroll_end.x;
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lv_coord_t top = scroll_end.y;
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lv_coord_t tx = ((left + (w / 2)) / w) * w;
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lv_coord_t ty = ((top + (h / 2)) / h) * h;
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lv_dir_t dir = LV_DIR_ALL;
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uint32_t i;
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for(i = 0; i < lv_obj_get_child_cnt(tv); i++) {
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lv_obj_t * tile_obj = lv_obj_get_child(tv, i);
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lv_coord_t x = lv_obj_get_x(tile_obj);
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lv_coord_t y = lv_obj_get_y(tile_obj);
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if(x == tx && y == ty) {
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lv_tileview_tile_t * tile = (lv_tileview_tile_t *)tile_obj;
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dir = tile->dir;
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break;
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}
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}
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lv_obj_set_scroll_dir(tv, dir);
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}
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}
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#endif /*LV_USE_TILEVIEW*/
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