217 lines
6.7 KiB
PHP
217 lines
6.7 KiB
PHP
<?php
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//============================================================+
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// File name : i25aobject.php
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// Begin : 2002-07-31
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// Last Update : 2004-12-29
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// Author : Karim Mribti [barcode@mribti.com]
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// : Nicola Asuni [info@tecnick.com]
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// Version : 0.0.8a 2001-04-01 (original code)
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// License : GNU LGPL (Lesser General Public License) 2.1
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// http://www.gnu.org/copyleft/lesser.txt
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// Source Code : http://www.mribti.com/barcode/
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//
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// Description : I25 Barcode Render Class for PHP using
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// the GD graphics library.
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// Interleaved 2 of 5 is a numeric only bar code
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// with a optional check number.
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//
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// NOTE:
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// This version contains changes by Nicola Asuni:
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// - porting to PHP5
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// - code style and formatting
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// - automatic php documentation in PhpDocumentor Style
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// (www.phpdoc.org)
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// - minor bug fixing
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//============================================================+
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/**
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* I25 Barcode Render Class for PHP using the GD graphics library.<br<
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* Interleaved 2 of 5 is a numeric only bar code with a optional check number.
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* @author Karim Mribti, Nicola Asuni
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* @name BarcodeObject
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* @package com.tecnick.tcpdf
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* @version 0.0.8a 2001-04-01 (original code)
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* @since 2001-03-25
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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*/
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/**
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* I25 Barcode Render Class for PHP using the GD graphics library.<br<
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* Interleaved 2 of 5 is a numeric only bar code with a optional check number.
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* @author Karim Mribti, Nicola Asuni
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* @name BarcodeObject
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* @package com.tecnick.tcpdf
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* @version 0.0.8a 2001-04-01 (original code)
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* @since 2001-03-25
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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*/
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class I25Object extends BarcodeObject {
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/**
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* Class Constructor.
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* @param int $Width Image width in pixels.
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* @param int $Height Image height in pixels.
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* @param int $Style Barcode style.
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* @param int $Value value to print on barcode.
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*/
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public function __construct($Width, $Height, $Style, $Value) {
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parent::__construct($Width, $Height, $Style);
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$this->mValue = $Value;
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$this->mCharSet = array (
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/* 0 */ "00110",
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/* 1 */ "10001",
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/* 2 */ "01001",
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/* 3 */ "11000",
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/* 4 */ "00101",
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/* 5 */ "10100",
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/* 6 */ "01100",
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/* 7 */ "00011",
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/* 8 */ "10010",
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/* 9 */ "01010"
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);
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}
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/**
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* Returns barcode size.
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* @param int $xres Horizontal resolution.
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* @return barcode size.
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* @access private
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*/
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private function GetSize($xres) {
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$len = strlen($this->mValue);
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if ($len == 0) {
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$this->mError = "Null value";
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return false;
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}
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for ($i=0;$i<$len;$i++) {
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if ((ord($this->mValue[$i])<48) || (ord($this->mValue[$i])>57)) {
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$this->mError = "I25 is numeric only";
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return false;
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}
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}
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if (($len%2) != 0) {
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$this->mError = "The length of barcode value must be even";
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return false;
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}
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$StartSize = BCD_I25_NARROW_BAR * 4 * $xres;
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$StopSize = BCD_I25_WIDE_BAR * $xres + 2 * BCD_I25_NARROW_BAR * $xres;
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$cPos = 0;
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$sPos = 0;
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do {
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$c1 = $this->mValue[$cPos];
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$c2 = $this->mValue[$cPos+1];
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$cset1 = $this->mCharSet[$c1];
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$cset2 = $this->mCharSet[$c2];
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for ($i=0;$i<5;$i++) {
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$type1 = ($cset1[$i]==0) ? (BCD_I25_NARROW_BAR * $xres) : (BCD_I25_WIDE_BAR * $xres);
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$type2 = ($cset2[$i]==0) ? (BCD_I25_NARROW_BAR * $xres) : (BCD_I25_WIDE_BAR * $xres);
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$sPos += ($type1 + $type2);
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}
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$cPos+=2;
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} while ($cPos<$len);
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return $sPos + $StartSize + $StopSize;
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}
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/**
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* Draws the start code.
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* @param int $DrawPos Drawing position.
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* @param int $yPos Vertical position.
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* @param int $ySize Vertical size.
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* @param int $xres Horizontal resolution.
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* @return int drawing position.
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* @access private
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*/
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private function DrawStart($DrawPos, $yPos, $ySize, $xres) {
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/* Start code is "0000" */
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$this->DrawSingleBar($DrawPos, $yPos, BCD_I25_NARROW_BAR * $xres , $ySize);
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$DrawPos += BCD_I25_NARROW_BAR * $xres;
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$DrawPos += BCD_I25_NARROW_BAR * $xres;
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$this->DrawSingleBar($DrawPos, $yPos, BCD_I25_NARROW_BAR * $xres , $ySize);
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$DrawPos += BCD_I25_NARROW_BAR * $xres;
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$DrawPos += BCD_I25_NARROW_BAR * $xres;
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return $DrawPos;
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}
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/**
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* Draws the stop code.
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* @param int $DrawPos Drawing position.
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* @param int $yPos Vertical position.
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* @param int $ySize Vertical size.
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* @param int $xres Horizontal resolution.
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* @return int drawing position.
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* @access private
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*/
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private function DrawStop($DrawPos, $yPos, $ySize, $xres) {
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/* Stop code is "100" */
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$this->DrawSingleBar($DrawPos, $yPos, BCD_I25_WIDE_BAR * $xres , $ySize);
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$DrawPos += BCD_I25_WIDE_BAR * $xres;
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$DrawPos += BCD_I25_NARROW_BAR * $xres;
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$this->DrawSingleBar($DrawPos, $yPos, BCD_I25_NARROW_BAR * $xres , $ySize);
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$DrawPos += BCD_I25_NARROW_BAR * $xres;
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return $DrawPos;
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}
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/**
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* Draws the barcode object.
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* @param int $xres Horizontal resolution.
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* @return bool true in case of success.
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*/
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public function DrawObject($xres) {
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$len = strlen($this->mValue);
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if (($size = $this->GetSize($xres))==0) {
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return false;
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}
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$cPos = 0;
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if ($this->mStyle & BCS_DRAW_TEXT) $ysize = $this->mHeight - BCD_DEFAULT_MAR_Y1 - BCD_DEFAULT_MAR_Y2 - $this->GetFontHeight($this->mFont);
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else $ysize = $this->mHeight - BCD_DEFAULT_MAR_Y1 - BCD_DEFAULT_MAR_Y2;
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if ($this->mStyle & BCS_ALIGN_CENTER) $sPos = (integer)(($this->mWidth - $size ) / 2);
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else if ($this->mStyle & BCS_ALIGN_RIGHT) $sPos = $this->mWidth - $size;
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else $sPos = 0;
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if ($this->mStyle & BCS_DRAW_TEXT) {
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if ($this->mStyle & BCS_STRETCH_TEXT) {
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/* Stretch */
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for ($i=0;$i<$len;$i++) {
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$this->DrawChar($this->mFont, $sPos+BCD_I25_NARROW_BAR*4*$xres+($size/$len)*$i,
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$ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET , $this->mValue[$i]);
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}
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}else {/* Center */
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$text_width = $this->GetFontWidth($this->mFont) * strlen($this->mValue);
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$this->DrawText($this->mFont, $sPos+(($size-$text_width)/2)+(BCD_I25_NARROW_BAR*4*$xres),
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$ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET, $this->mValue);
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}
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}
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$sPos = $this->DrawStart($sPos, BCD_DEFAULT_MAR_Y1, $ysize, $xres);
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do {
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$c1 = $this->mValue[$cPos];
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$c2 = $this->mValue[$cPos+1];
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$cset1 = $this->mCharSet[$c1];
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$cset2 = $this->mCharSet[$c2];
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for ($i=0;$i<5;$i++) {
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$type1 = ($cset1[$i]==0) ? (BCD_I25_NARROW_BAR * $xres) : (BCD_I25_WIDE_BAR * $xres);
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$type2 = ($cset2[$i]==0) ? (BCD_I25_NARROW_BAR * $xres) : (BCD_I25_WIDE_BAR * $xres);
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$this->DrawSingleBar($sPos, BCD_DEFAULT_MAR_Y1, $type1 , $ysize);
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$sPos += ($type1 + $type2);
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}
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$cPos+=2;
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} while ($cPos<$len);
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$sPos = $this->DrawStop($sPos, BCD_DEFAULT_MAR_Y1, $ysize, $xres);
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return true;
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}
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}
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//============================================================+
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// END OF FILE
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//============================================================+
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?>
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