PageGPS.cpp

/*
 * MIT License
 *
 * Copyright (c) 2020 Christopher B. Liebman
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
*/

#include "PageGPS.h"
#include "Display.h"
#include "WithDisplayLock.h"
#include "LVContainer.h"

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"

static const char* TAG = "PageGPS";

PageGPS::PageGPS(GPS& gps)
: _gps(gps)
{
    WithDisplayLock([this](){
        _container_style.setPadInner(LV_STATE_DEFAULT, LV_DPX(2));
        _container_style.setPad(LV_STATE_DEFAULT, LV_DPX(1), LV_DPX(1), LV_DPX(1), LV_DPX(1));
        _container_style.setMargin(LV_STATE_DEFAULT, 0, 0, 0, 0);
        _container_style.setBorderWidth(LV_STATE_DEFAULT, 0);
        _container_style.setShadowWidth(LV_STATE_DEFAULT, 0);

        _page = Display::getDisplay().newPage("GPS");
        _page->addStyle(LV_PAGE_PART_SCROLLABLE, &_container_style);

        LVContainer* cont = new LVContainer(_page);
        cont->setFit(LV_FIT_PARENT/*, LV_FIT_TIGHT*/);
        cont->addStyle(LV_CONT_PART_MAIN, &_container_style);
        cont->setLayout(LV_LAYOUT_COLUMN_LEFT);
        cont->align(nullptr, LV_ALIGN_CENTER, 0, 0);
        cont->setDragParent(true);

        _rmc_time = new LVLabel(cont);
        _sats     = new LVLabel(cont);
        _status   = new LVLabel(cont);
        _pos      = new LVLabel(cont);

        _psti     = new LVLabel(cont);
    
        ESP_LOGI(TAG, "creating task");
        lv_task_create(task, 100, LV_TASK_PRIO_LOW, this);
    });
}

PageGPS::~PageGPS()
{
}

void PageGPS::task(lv_task_t *task)
{
    PageGPS* p = static_cast<PageGPS*>(task->user_data);
    p->update();
}

void PageGPS::update()
{
    static char buf[2048];
    snprintf(buf, sizeof(buf)-1, "Sats: %d tracked: %d", _gps.getSatsTotal(), _gps.getSatsTracked());
    _sats->setText(buf);

    snprintf(buf, sizeof(buf)-1, "Valid: %s mode: %c type: %d quality: %d",
            _gps.getValid() ? "yes" : "no",
            _gps.getMode(), _gps.getFixType(), _gps.getFixQuality());
    _status->setText(buf);

    snprintf(buf, sizeof(buf)-1, "lat: %f lon:%f alt: %0.1f%c", _gps.getLatitude(), _gps.getLongitude(), _gps.getAltitude(), _gps.getAltitudeUnits());
    _pos->setText(buf);
    time_t time = _gps.getRMCTime();
    const char* rt = ctime_r(&time, buf);
    if (rt == nullptr)
    {
        strncpy(buf, "<date/time unknown>", sizeof(buf)-1);
    }
    else
    {
        buf[strlen(buf)-1] = '\0';
    }
    _rmc_time->setText(buf);

    _psti->setText(_gps.getPSTI());
}