auxdisplay/AuxDisplay.cpp at main · abratchik/auxdisplay · GitHub

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/*
 * Copyright (C) 2022 abratchik
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * File:   AuxDisplay.cpp
 * Author: abratchik
 *
 * Created on January 9, 2022, 6:14 PM
 */

#include <string.h>
#include "AuxDisplay.h"


bool AuxDisplay::initialize() {

    if(handle == NULL)
        handle = hidlcd_open(vendorid, productid, NULL);

    if(handle == NULL)
        return false;

    if(dp ==  NULL)
        dp = hidlcd_get_display_params(handle);

    return true;
}

int AuxDisplay::show() {

//    int res = hidlcd_set_cursor(handle, 0, 0);

//    std::string cmd = "sensors -u | grep --no-messages -A 3 coretemp-isa | "
//                      "grep temp1_input | awk '{print $2}' | awk '{printf(\"%d\\n\",$1 + 0.5);}'";
//    std::string cmd = "date \"+%d-%m-%y%T\"";
//    std::string msg = exec_cmd(cmd.c_str());

    if(display != NULL) {
        int count = config_setting_length(display);
        int i;
        std::string msg;

        for(i = 0; i < count; ++i) {
            config_setting_t *line = config_setting_get_elem(display, i);
            int type, posx, posy;
            const char* output;

            config_setting_lookup_string(line, "output", &output);
            config_setting_lookup_int(line, "type", &type);
            config_setting_lookup_int(line, "posx", &posx);
            config_setting_lookup_int(line, "posy", &posy);

            if(posx >= 0 && posy >= 0) {
                hidlcd_set_cursor(handle, posy, posx);
            }

            switch(type) {
                case 0 :
                    hidlcd_print(handle, dp, output);
                    break;
                case 1 :
                    msg = exec_cmd(output);
                    hidlcd_print(handle, dp, msg.c_str());
                    break;

                default :
                    break;

            }
            usleep(cmddelay * 1000);
        }

    }

    return 0;

}

int AuxDisplay::load_config() {
    if(!config_read_file(&cfg, CONFIG_FILE)) {
        return(CONFIG_LOAD_FAILURE);
    }

    config_lookup_int(&cfg, "vendorid", &vendorid);
    config_lookup_int(&cfg, "productid", &productid);
    config_lookup_int(&cfg, "refresh", &refresh);
    config_lookup_int(&cfg, "cmddelay", &cmddelay);

    display = config_lookup(&cfg, "display");

    return(CONFIG_LOAD_SUCCESS);
}