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ndg/lib/lvgl/demos/keypad_encoder/lv_demo_keypad_encoder.c

221 lines
6.3 KiB
C

/**
* @file lv_demo_keypad_encoder.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_demo_keypad_encoder.h"
#if LV_USE_DEMO_KEYPAD_AND_ENCODER
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void selectors_create(lv_obj_t * parent);
static void text_input_create(lv_obj_t * parent);
static void msgbox_create(void);
static void msgbox_event_cb(lv_event_t * e);
static void ta_event_cb(lv_event_t * e);
/**********************
* STATIC VARIABLES
**********************/
static lv_group_t * g;
static lv_obj_t * tv;
static lv_obj_t * t1;
static lv_obj_t * t2;
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
void lv_demo_keypad_encoder(void)
{
g = lv_group_create();
lv_group_set_default(g);
lv_indev_t * cur_drv = NULL;
for(;;) {
cur_drv = lv_indev_get_next(cur_drv);
if(!cur_drv) {
break;
}
if(cur_drv->driver->type == LV_INDEV_TYPE_KEYPAD) {
lv_indev_set_group(cur_drv, g);
}
if(cur_drv->driver->type == LV_INDEV_TYPE_ENCODER) {
lv_indev_set_group(cur_drv, g);
}
}
tv = lv_tabview_create(lv_scr_act(), LV_DIR_TOP, LV_DPI_DEF / 3);
t1 = lv_tabview_add_tab(tv, "Selectors");
t2 = lv_tabview_add_tab(tv, "Text input");
selectors_create(t1);
text_input_create(t2);
msgbox_create();
}
/**********************
* STATIC FUNCTIONS
**********************/
static void selectors_create(lv_obj_t * parent)
{
lv_obj_set_flex_flow(parent, LV_FLEX_FLOW_COLUMN);
lv_obj_set_flex_align(parent, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
lv_obj_t * obj;
obj = lv_table_create(parent);
lv_table_set_cell_value(obj, 0, 0, "00");
lv_table_set_cell_value(obj, 0, 1, "01");
lv_table_set_cell_value(obj, 1, 0, "10");
lv_table_set_cell_value(obj, 1, 1, "11");
lv_table_set_cell_value(obj, 2, 0, "20");
lv_table_set_cell_value(obj, 2, 1, "21");
lv_table_set_cell_value(obj, 3, 0, "30");
lv_table_set_cell_value(obj, 3, 1, "31");
lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
obj = lv_calendar_create(parent);
lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
obj = lv_btnmatrix_create(parent);
lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
obj = lv_checkbox_create(parent);
lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
obj = lv_slider_create(parent);
lv_slider_set_range(obj, 0, 10);
lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
obj = lv_switch_create(parent);
lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
obj = lv_spinbox_create(parent);
lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
obj = lv_dropdown_create(parent);
lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
obj = lv_roller_create(parent);
lv_obj_add_flag(obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
lv_obj_t * list = lv_list_create(parent);
lv_obj_update_layout(list);
if(lv_obj_get_height(list) > lv_obj_get_content_height(parent)) {
lv_obj_set_height(list, lv_obj_get_content_height(parent));
}
lv_list_add_btn(list, LV_SYMBOL_OK, "Apply");
lv_list_add_btn(list, LV_SYMBOL_CLOSE, "Close");
lv_list_add_btn(list, LV_SYMBOL_EYE_OPEN, "Show");
lv_list_add_btn(list, LV_SYMBOL_EYE_CLOSE, "Hide");
lv_list_add_btn(list, LV_SYMBOL_TRASH, "Delete");
lv_list_add_btn(list, LV_SYMBOL_COPY, "Copy");
lv_list_add_btn(list, LV_SYMBOL_PASTE, "Paste");
}
static void text_input_create(lv_obj_t * parent)
{
lv_obj_set_flex_flow(parent, LV_FLEX_FLOW_COLUMN);
lv_obj_t * ta1 = lv_textarea_create(parent);
lv_obj_set_width(ta1, LV_PCT(100));
lv_textarea_set_one_line(ta1, true);
lv_textarea_set_placeholder_text(ta1, "Click with an encoder to show a keyboard");
lv_obj_t * ta2 = lv_textarea_create(parent);
lv_obj_set_width(ta2, LV_PCT(100));
lv_textarea_set_one_line(ta2, true);
lv_textarea_set_placeholder_text(ta2, "Type something");
lv_obj_t * kb = lv_keyboard_create(lv_scr_act());
lv_obj_add_flag(kb, LV_OBJ_FLAG_HIDDEN);
lv_obj_add_event_cb(ta1, ta_event_cb, LV_EVENT_ALL, kb);
lv_obj_add_event_cb(ta2, ta_event_cb, LV_EVENT_ALL, kb);
}
static void msgbox_create(void)
{
static const char * btns[] = {"Ok", "Cancel", ""};
lv_obj_t * mbox = lv_msgbox_create(NULL, "Hi", "Welcome to the keyboard and encoder demo", btns, false);
lv_obj_add_event_cb(mbox, msgbox_event_cb, LV_EVENT_ALL, NULL);
lv_group_focus_obj(lv_msgbox_get_btns(mbox));
lv_obj_add_state(lv_msgbox_get_btns(mbox), LV_STATE_FOCUS_KEY);
lv_group_focus_freeze(g, true);
lv_obj_align(mbox, LV_ALIGN_CENTER, 0, 0);
lv_obj_t * bg = lv_obj_get_parent(mbox);
lv_obj_set_style_bg_opa(bg, LV_OPA_70, 0);
lv_obj_set_style_bg_color(bg, lv_palette_main(LV_PALETTE_GREY), 0);
}
static void msgbox_event_cb(lv_event_t * e)
{
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * msgbox = lv_event_get_current_target(e);
if(code == LV_EVENT_VALUE_CHANGED) {
const char * txt = lv_msgbox_get_active_btn_text(msgbox);
if(txt) {
lv_msgbox_close(msgbox);
lv_group_focus_freeze(g, false);
lv_group_focus_obj(lv_obj_get_child(t1, 0));
lv_obj_scroll_to(t1, 0, 0, LV_ANIM_OFF);
}
}
}
static void ta_event_cb(lv_event_t * e)
{
lv_indev_t * indev = lv_indev_get_act();
if(indev == NULL) return;
lv_indev_type_t indev_type = lv_indev_get_type(indev);
lv_event_code_t code = lv_event_get_code(e);
lv_obj_t * ta = lv_event_get_target(e);
lv_obj_t * kb = lv_event_get_user_data(e);
if(code == LV_EVENT_CLICKED && indev_type == LV_INDEV_TYPE_ENCODER) {
lv_keyboard_set_textarea(kb, ta);
lv_obj_clear_flag(kb, LV_OBJ_FLAG_HIDDEN);
lv_group_focus_obj(kb);
lv_group_set_editing(lv_obj_get_group(kb), kb);
lv_obj_set_height(tv, LV_VER_RES / 2);
lv_obj_align(kb, LV_ALIGN_BOTTOM_MID, 0, 0);
}
if(code == LV_EVENT_READY || code == LV_EVENT_CANCEL) {
lv_obj_add_flag(kb, LV_OBJ_FLAG_HIDDEN);
lv_obj_set_height(tv, LV_VER_RES);
}
}
#endif