111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
/*
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* keypad_screen.c
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*
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* Created on: Aug 11, 2023
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* Author: leo
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*/
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#include "keypad_screen.h"
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#include <src/font/lv_symbol_def.h>
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#include <stdio.h>
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#include "lvgl.h"
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static keypad_data* kp_data;
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static uint32_t value;
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lv_obj_t* value_readout;
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static const char * btnm_map[] = {"7", "8", "9", "\n", "4", "5", "6", "\n", "1", "2", "3", "\n", "X", "0", LV_SYMBOL_BACKSPACE, NULL};
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static void back_button_handler(lv_event_t * e){
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lv_event_code_t code = lv_event_get_code(e);
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if(code == LV_EVENT_CLICKED) {
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lv_obj_t* curr_scr = lv_scr_act();
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lv_scr_load(kp_data->parent);
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lv_obj_del(curr_scr);
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}
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}
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static void ok_button_handler(lv_event_t * e){
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lv_event_code_t code = lv_event_get_code(e);
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if(code == LV_EVENT_CLICKED) {
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kp_data->value = value;
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lv_obj_t* curr_scr = lv_scr_act();
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lv_scr_load(kp_data->parent);
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lv_obj_del(curr_scr);
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kp_data->cb(kp_data);
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}
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}
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static void keypress_handler(lv_event_t * e){
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lv_event_code_t code = lv_event_get_code(e);
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lv_obj_t * obj = lv_event_get_target(e);
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if(code == LV_EVENT_VALUE_CHANGED) {
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uint32_t id = lv_btnmatrix_get_selected_btn(obj);
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const char * txt = lv_btnmatrix_get_btn_text(obj, id);
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if(txt[0] >= 48 && txt[0] <= 57){ // number
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uint8_t digit = txt[0] - 48;
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value *= 10;
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value += digit;
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}
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else if(txt[0] == 'X') value = 0;
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else value /= 10;
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lv_label_set_text_fmt(value_readout, "%02ld.%03ld", value/1000, value%1000);
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}
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}
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void Keypad_screen_launch(keypad_data* data){
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kp_data = data;
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value = 0;
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// main screen
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lv_obj_t* scr = lv_obj_create(NULL);
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// create the top menu on the top 20%
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lv_obj_t* top_menu = lv_obj_create(scr);
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lv_obj_set_align(top_menu, LV_ALIGN_TOP_LEFT);
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lv_obj_set_size(top_menu, lv_pct(100), lv_pct(20));
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lv_obj_set_style_pad_all(top_menu, 5, 0);
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// add a back button
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lv_obj_t* back_button = lv_btn_create(top_menu);
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lv_obj_set_size(back_button, lv_pct(10), lv_pct(100));
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lv_obj_set_align(back_button, LV_ALIGN_TOP_LEFT);
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lv_obj_add_event_cb(back_button, back_button_handler, LV_EVENT_ALL, NULL);
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// add the back label
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lv_obj_t* back_label = lv_label_create(back_button);
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lv_label_set_text(back_label, LV_SYMBOL_LEFT);
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lv_obj_center(back_label);
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// add a readout of the set value
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value_readout = lv_label_create(top_menu);
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lv_label_set_text_fmt(value_readout, "%02lu.%03lu", value/1000, value%1000);
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lv_obj_center(value_readout);
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// add a validation button
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lv_obj_t* ok_button = lv_btn_create(top_menu);
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lv_obj_set_size(ok_button, lv_pct(10), lv_pct(100));
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lv_obj_set_align(ok_button, LV_ALIGN_TOP_RIGHT);
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lv_obj_add_event_cb(ok_button, ok_button_handler, LV_EVENT_ALL, NULL);
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// add the ok label
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lv_obj_t* ok_label = lv_label_create(ok_button);
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lv_label_set_text(ok_label, LV_SYMBOL_OK);
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lv_obj_center(ok_label);
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lv_obj_t * btnm1 = lv_btnmatrix_create(scr);
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lv_btnmatrix_set_map(btnm1, btnm_map);
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lv_obj_align_to(btnm1, top_menu, LV_ALIGN_OUT_BOTTOM_LEFT, 0, 0);
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lv_obj_set_size(btnm1, lv_pct(100), lv_pct(80));
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lv_obj_add_event_cb(btnm1, keypress_handler, LV_EVENT_ALL, NULL);
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lv_scr_load(scr);
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}
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