?iť?
Your IP : 18.221.20.159
<?php
/**
* escpos-php, a Thermal receipt printer library, for use with
* ESC/POS compatible printers.
*
* Copyright (c) 2014-2015 Michael Billington <michael.billington@gmail.com>,
* incorporating modifications by:
* - Roni Saha <roni.cse@gmail.com>
* - Gergely Radics <gerifield@ustream.tv>
* - Warren Doyle <w.doyle@fuelled.co>
*
* 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.
*
* Print connector that writes to nowhere, but allows the user to retrieve the
* buffered data. Used for testing.
*/
final class DummyPrintConnector implements PrintConnector {
/**
* @var array Buffer of accumilated data.
*/
private $buffer;
/**
* @var string data which the printer will provide on next read
*/
private $readData;
/**
* Create new print connector
*/
public function __construct() {
$this -> buffer = array();
}
public function __destruct() {
if($this -> buffer !== null) {
trigger_error("Print connector was not finalized. Did you forget to close the printer?", E_USER_NOTICE);
}
}
public function finalize() {
$this -> buffer = null;
}
/**
* @return string Get the accumulated data that has been sent to this buffer.
*/
public function getData() {
return implode($this -> buffer);
}
/* (non-PHPdoc)
* @see PrintConnector::read()
*/
public function read($len) {
return $len >= strlen($this -> readData) ? $this -> readData : substr($this -> readData, 0, $len);
}
public function write($data) {
$this -> buffer[] = $data;
}
}