arduinolibs/libraries/RTC/examples/AlarmClock/SetTime.cpp

/*
 * Copyright (C) 2012 Southern Storm Software, Pty Ltd.
 *
 * 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 "SetTime.h"
#include "Clock.h"

#define EDIT_HOUR           0
#define EDIT_MINUTE_TENS    1
#define EDIT_MINUTE         2

extern bool is24HourClock;

SetTime::SetTime(Form &form, const String &label)
    : Field(form, label)
    , editField(EDIT_HOUR)
{
    _value.hour = 0;
    _value.minute = 0;
    _value.second = 0;
}

int SetTime::dispatch(int event)
{
    RTCTime newValue;
    if (event == LCD_BUTTON_UP) {
        newValue = _value;
        if (editField == EDIT_HOUR) {
            newValue.hour = (newValue.hour + 1) % 24;
        } else if (editField == EDIT_MINUTE_TENS) {
            newValue.minute = (newValue.minute + 10) % 60;
        } else if (editField == EDIT_MINUTE) {
            newValue.minute = (newValue.minute + 1) % 60;
        }
        newValue.second = 0;
        setValue(newValue);
        return FORM_CHANGED;
    } else if (event == LCD_BUTTON_DOWN) {
        newValue = _value;
        if (editField == EDIT_HOUR) {
            newValue.hour = (newValue.hour + 23) % 24;
        } else if (editField == EDIT_MINUTE_TENS) {
            newValue.minute = (newValue.minute + 50) % 60;
        } else if (editField == EDIT_MINUTE) {
            newValue.minute = (newValue.minute + 59) % 60;
        }
        newValue.second = 0;
        setValue(newValue);
        return FORM_CHANGED;
    } else if (event == LCD_BUTTON_LEFT) {
        if (editField != EDIT_HOUR) {
            --editField;
            printTime();
            return 0;
        }
    } else if (event == LCD_BUTTON_RIGHT) {
        if (editField != EDIT_MINUTE) {
            ++editField;
            printTime();
            return 0;
        }
    }
    return -1;
}

void SetTime::enterField(bool reverse)
{
    Field::enterField(reverse);
    rtc.readTime(&_value);
    if (reverse)
        editField = EDIT_MINUTE;
    else
        editField = EDIT_HOUR;
    printTime();
    lcd()->cursor();
}

void SetTime::exitField()
{
    lcd()->noCursor();
    Field::exitField();
}

void SetTime::setValue(const RTCTime &value)
{
    _value = value;
    rtc.writeTime(&_value);
    if (isCurrent())
        printTime();
}

void SetTime::updateCurrentTime()
{
    if (isCurrent()) {
        RTCTime time;
        rtc.readTime(&time);
        if (time.hour != _value.hour || time.minute != _value.minute) {
            _value = time;
            printTime();
        }
    }
}

void SetTime::printTime()
{
    lcd()->setCursor(0, 1);
    int hour = _value.hour;
    int minute = _value.minute;
    int timeCol = 0;
    bool pm;
    if (is24HourClock) {
        lcd()->write('0' + hour / 10);
        lcd()->write('0' + hour % 10);
        pm = false;
    } else if (hour == 0 || hour == 12) {
        lcd()->write('1');
        lcd()->write('2');
        pm = (hour == 12);
    } else if (hour < 12) {
        lcd()->write('0' + hour / 10);
        lcd()->write('0' + hour % 10);
        pm = false;
    } else {
        hour -= 12;
        lcd()->write('0' + hour / 10);
        lcd()->write('0' + hour % 10);
        pm = true;
    }
    lcd()->write(':');
    lcd()->write('0' + minute / 10);
    lcd()->write('0' + minute % 10);
    if (!is24HourClock)
        lcd()->print(pm ? "pm" : "am");
    if (editField == EDIT_HOUR)
        lcd()->setCursor(timeCol + 1, 1);
    else if (editField == EDIT_MINUTE_TENS)
        lcd()->setCursor(timeCol + 3, 1);
    else if (editField == EDIT_MINUTE)
        lcd()->setCursor(timeCol + 4, 1);
}