<?php
/*********************************************************************
 *
 *  $Id: yocto_latitude.php 38899 2019-12-20 17:21:03Z mvuilleu $
 *
 *  Implements YLatitude, the high-level API for Latitude functions
 *
 *  - - - - - - - - - License information: - - - - - - - - -
 *
 *  Copyright (C) 2011 and beyond by Yoctopuce Sarl, Switzerland.
 *
 *  Yoctopuce Sarl (hereafter Licensor) grants to you a perpetual
 *  non-exclusive license to use, modify, copy and integrate this
 *  file into your software for the sole purpose of interfacing
 *  with Yoctopuce products.
 *
 *  You may reproduce and distribute copies of this file in
 *  source or object form, as long as the sole purpose of this
 *  code is to interface with Yoctopuce products. You must retain
 *  this notice in the distributed source file.
 *
 *  You should refer to Yoctopuce General Terms and Conditions
 *  for additional information regarding your rights and
 *  obligations.
 *
 *  THE SOFTWARE AND DOCUMENTATION ARE PROVIDED 'AS IS' WITHOUT
 *  WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
 *  WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS
 *  FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO
 *  EVENT SHALL LICENSOR BE LIABLE FOR ANY INCIDENTAL, SPECIAL,
 *  INDIRECT OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA,
 *  COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY OR
 *  SERVICES, ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT
 *  LIMITED TO ANY DEFENSE THEREOF), ANY CLAIMS FOR INDEMNITY OR
 *  CONTRIBUTION, OR OTHER SIMILAR COSTS, WHETHER ASSERTED ON THE
 *  BASIS OF CONTRACT, TORT (INCLUDING NEGLIGENCE), BREACH OF
 *  WARRANTY, OR OTHERWISE.
 *
 *********************************************************************/

//--- (YLatitude return codes)
//--- (end of YLatitude return codes)
//--- (YLatitude definitions)
//--- (end of YLatitude definitions)
    #--- (YLatitude yapiwrapper)
   #--- (end of YLatitude yapiwrapper)

//--- (YLatitude declaration)
/**
 * YLatitude Class: latitude sensor control interface, available for instance in the Yocto-GPS
 *
 * The YLatitude class allows you to read and configure Yoctopuce latitude sensors.
 * It inherits from YSensor class the core functions to read measurements,
 * to register callback functions, and to access the autonomous datalogger.
 */
class YLatitude extends YSensor
{
    //--- (end of YLatitude declaration)

    //--- (YLatitude attributes)
    //--- (end of YLatitude attributes)

    function __construct($str_func)
    {
        //--- (YLatitude constructor)
        parent::__construct($str_func);
        $this->_className = 'Latitude';

        //--- (end of YLatitude constructor)
    }

    //--- (YLatitude implementation)

    /**
     * Retrieves a latitude sensor for a given identifier.
     * The identifier can be specified using several formats:
     * <ul>
     * <li>FunctionLogicalName</li>
     * <li>ModuleSerialNumber.FunctionIdentifier</li>
     * <li>ModuleSerialNumber.FunctionLogicalName</li>
     * <li>ModuleLogicalName.FunctionIdentifier</li>
     * <li>ModuleLogicalName.FunctionLogicalName</li>
     * </ul>
     *
     * This function does not require that the latitude sensor is online at the time
     * it is invoked. The returned object is nevertheless valid.
     * Use the method YLatitude.isOnline() to test if the latitude sensor is
     * indeed online at a given time. In case of ambiguity when looking for
     * a latitude sensor by logical name, no error is notified: the first instance
     * found is returned. The search is performed first by hardware name,
     * then by logical name.
     *
     * If a call to this object's is_online() method returns FALSE although
     * you are certain that the matching device is plugged, make sure that you did
     * call registerHub() at application initialization time.
     *
     * @param string $func : a string that uniquely characterizes the latitude sensor, for instance
     *         YGNSSMK1.latitude.
     *
     * @return YLatitude : a YLatitude object allowing you to drive the latitude sensor.
     */
    public static function FindLatitude($func)
    {
        // $obj                    is a YLatitude;
        $obj = YFunction::_FindFromCache('Latitude', $func);
        if ($obj == null) {
            $obj = new YLatitude($func);
            YFunction::_AddToCache('Latitude', $func, $obj);
        }
        return $obj;
    }

    /**
     * Continues the enumeration of latitude sensors started using yFirstLatitude().
     * Caution: You can't make any assumption about the returned latitude sensors order.
     * If you want to find a specific a latitude sensor, use Latitude.findLatitude()
     * and a hardwareID or a logical name.
     *
     * @return YLatitude : a pointer to a YLatitude object, corresponding to
     *         a latitude sensor currently online, or a null pointer
     *         if there are no more latitude sensors to enumerate.
     */
    public function nextLatitude()
    {   $resolve = YAPI::resolveFunction($this->_className, $this->_func);
        if($resolve->errorType != YAPI_SUCCESS) return null;
        $next_hwid = YAPI::getNextHardwareId($this->_className, $resolve->result);
        if($next_hwid == null) return null;
        return self::FindLatitude($next_hwid);
    }

    /**
     * Starts the enumeration of latitude sensors currently accessible.
     * Use the method YLatitude.nextLatitude() to iterate on
     * next latitude sensors.
     *
     * @return YLatitude : a pointer to a YLatitude object, corresponding to
     *         the first latitude sensor currently online, or a null pointer
     *         if there are none.
     */
    public static function FirstLatitude()
    {   $next_hwid = YAPI::getFirstHardwareId('Latitude');
        if($next_hwid == null) return null;
        return self::FindLatitude($next_hwid);
    }

    //--- (end of YLatitude implementation)

};

//--- (YLatitude functions)

/**
 * Retrieves a latitude sensor for a given identifier.
 * The identifier can be specified using several formats:
 * <ul>
 * <li>FunctionLogicalName</li>
 * <li>ModuleSerialNumber.FunctionIdentifier</li>
 * <li>ModuleSerialNumber.FunctionLogicalName</li>
 * <li>ModuleLogicalName.FunctionIdentifier</li>
 * <li>ModuleLogicalName.FunctionLogicalName</li>
 * </ul>
 *
 * This function does not require that the latitude sensor is online at the time
 * it is invoked. The returned object is nevertheless valid.
 * Use the method YLatitude.isOnline() to test if the latitude sensor is
 * indeed online at a given time. In case of ambiguity when looking for
 * a latitude sensor by logical name, no error is notified: the first instance
 * found is returned. The search is performed first by hardware name,
 * then by logical name.
 *
 * If a call to this object's is_online() method returns FALSE although
 * you are certain that the matching device is plugged, make sure that you did
 * call registerHub() at application initialization time.
 *
 * @param string $func : a string that uniquely characterizes the latitude sensor, for instance
 *         YGNSSMK1.latitude.
 *
 * @return YLatitude : a YLatitude object allowing you to drive the latitude sensor.
 */
function yFindLatitude($func)
{
    return YLatitude::FindLatitude($func);
}

/**
 * Starts the enumeration of latitude sensors currently accessible.
 * Use the method YLatitude.nextLatitude() to iterate on
 * next latitude sensors.
 *
 * @return YLatitude : a pointer to a YLatitude object, corresponding to
 *         the first latitude sensor currently online, or a null pointer
 *         if there are none.
 */
function yFirstLatitude()
{
    return YLatitude::FirstLatitude();
}

//--- (end of YLatitude functions)
?>