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1 <?php 2 //============================================================+ 3 // File name : c39object.php 4 // Begin : 2002-07-31 5 // Last Update : 2004-12-29 6 // Author : Karim Mribti [[email protected]] 7 // : Nicola Asuni [[email protected]] 8 // Version : 0.0.8a 2001-04-01 (original code) 9 // License : GNU LGPL (Lesser General Public License) 2.1 10 // http://www.gnu.org/copyleft/lesser.txt 11 // Source Code : http://www.mribti.com/barcode/ 12 // 13 // Description : Code 39 Barcode Render Class for PHP using 14 // the GD graphics library. 15 // Code 39 is an alphanumeric bar code that can 16 // encode decimal number, case alphabet and some 17 // special symbols. 18 // 19 // NOTE: 20 // This version contains changes by Nicola Asuni: 21 // - porting to PHP5 22 // - code style and formatting 23 // - automatic php documentation in PhpDocumentor Style 24 // (www.phpdoc.org) 25 // - minor bug fixing 26 //============================================================+ 27 28 /** 29 * Code 39 Barcode Render Class.<br> 30 * Code 39 is an alphanumeric bar code that can encode decimal number, case alphabet and some special symbols. 31 * @author Karim Mribti, Nicola Asuni 32 * @name BarcodeObject 33 * @package com.tecnick.tcpdf 34 * @version 0.0.8a 2001-04-01 (original code) 35 * @since 2001-03-25 36 * @license http://www.gnu.org/copyleft/lesser.html LGPL 37 */ 38 39 /** 40 * Code 39 Barcode Render Class.<br> 41 * Code 39 is an alphanumeric bar code that can encode decimal number, case alphabet and some special symbols. 42 * @author Karim Mribti, Nicola Asuni 43 * @name BarcodeObject 44 * @package com.tecnick.tcpdf 45 * @version 0.0.8a 2001-04-01 (original code) 46 * @since 2001-03-25 47 * @license http://www.gnu.org/copyleft/lesser.html LGPL 48 */ 49 class C39Object extends BarcodeObject { 50 51 /** 52 * Class Constructor. 53 * @param int $Width Image width in pixels. 54 * @param int $Height Image height in pixels. 55 * @param int $Style Barcode style. 56 * @param int $Value value to print on barcode. 57 */ 58 public function __construct($Width, $Height, $Style, $Value) { 59 parent::__construct($Width, $Height, $Style); 60 $this->mValue = $Value; 61 $this->mChars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. *$/+%"; 62 $this->mCharSet = array ( 63 /* 0 */ "000110100", 64 /* 1 */ "100100001", 65 /* 2 */ "001100001", 66 /* 3 */ "101100000", 67 /* 4 */ "000110001", 68 /* 5 */ "100110000", 69 /* 6 */ "001110000", 70 /* 7 */ "000100101", 71 /* 8 */ "100100100", 72 /* 9 */ "001100100", 73 /* A */ "100001001", 74 /* B */ "001001001", 75 /* C */ "101001000", 76 /* D */ "000011001", 77 /* E */ "100011000", 78 /* F */ "001011000", 79 /* G */ "000001101", 80 /* H */ "100001100", 81 /* I */ "001001100", 82 /* J */ "000011100", 83 /* K */ "100000011", 84 /* L */ "001000011", 85 /* M */ "101000010", 86 /* N */ "000010011", 87 /* O */ "100010010", 88 /* P */ "001010010", 89 /* Q */ "000000111", 90 /* R */ "100000110", 91 /* S */ "001000110", 92 /* T */ "000010110", 93 /* U */ "110000001", 94 /* V */ "011000001", 95 /* W */ "111000000", 96 /* X */ "010010001", 97 /* Y */ "110010000", 98 /* Z */ "011010000", 99 /* - */ "010000101", 100 /* . */ "110000100", 101 /* SP */ "011000100", 102 /* * */ "010010100", 103 /* $ */ "010101000", 104 /* / */ "010100010", 105 /* + */ "010001010", 106 /* % */ "000101010" 107 ); 108 } 109 110 /** 111 * Returns the character index. 112 * @param char $char character. 113 * @return int character index or -1 in case of error. 114 * @access private 115 */ 116 private function GetCharIndex($char) { 117 for ($i=0;$i<44;$i++) { 118 if ($this->mChars[$i] == $char) { 119 return $i; 120 } 121 } 122 return -1; 123 } 124 125 /** 126 * Returns barcode size. 127 * @param int $xres Horizontal resolution. 128 * @return barcode size. 129 * @access private 130 */ 131 private function GetSize($xres) { 132 $len = strlen($this->mValue); 133 134 if ($len == 0) { 135 $this->mError = "Null value"; 136 return false; 137 } 138 139 for ($i=0;$i<$len;$i++) { 140 if ($this->GetCharIndex($this->mValue[$i]) == -1 || $this->mValue[$i] == '*') { 141 /* The asterisk is only used as a start and stop code */ 142 $this->mError = "C39 not include the char '".$this->mValue[$i]."'"; 143 return false; 144 } 145 } 146 147 /* Start, Stop is 010010100 == '*' */ 148 $StartSize = BCD_C39_NARROW_BAR * $xres * 6 + BCD_C39_WIDE_BAR * $xres * 3; 149 $StopSize = BCD_C39_NARROW_BAR * $xres * 6 + BCD_C39_WIDE_BAR * $xres * 3; 150 $CharSize = BCD_C39_NARROW_BAR * $xres * 6 + BCD_C39_WIDE_BAR * $xres * 3; /* Same for all chars */ 151 152 return $CharSize * $len + $StartSize + $StopSize + /* Space between chars */ BCD_C39_NARROW_BAR * $xres * ($len-1); 153 } 154 155 /** 156 * Draws the start code. 157 * @param int $DrawPos Drawing position. 158 * @param int $yPos Vertical position. 159 * @param int $ySize Vertical size. 160 * @param int $xres Horizontal resolution. 161 * @return int drawing position. 162 * @access private 163 */ 164 private function DrawStart($DrawPos, $yPos, $ySize, $xres) { 165 /* Start code is '*' */ 166 $narrow = BCD_C39_NARROW_BAR * $xres; 167 $wide = BCD_C39_WIDE_BAR * $xres; 168 $this->DrawSingleBar($DrawPos, $yPos, $narrow , $ySize); 169 $DrawPos += $narrow; 170 $DrawPos += $wide; 171 $this->DrawSingleBar($DrawPos, $yPos, $narrow , $ySize); 172 $DrawPos += $narrow; 173 $DrawPos += $narrow; 174 $this->DrawSingleBar($DrawPos, $yPos, $wide , $ySize); 175 $DrawPos += $wide; 176 $DrawPos += $narrow; 177 $this->DrawSingleBar($DrawPos, $yPos, $wide , $ySize); 178 $DrawPos += $wide; 179 $DrawPos += $narrow; 180 $this->DrawSingleBar($DrawPos, $yPos, $narrow, $ySize); 181 $DrawPos += $narrow; 182 $DrawPos += $narrow; /* Space between chars */ 183 return $DrawPos; 184 } 185 186 /** 187 * Draws the stop code. 188 * @param int $DrawPos Drawing position. 189 * @param int $yPos Vertical position. 190 * @param int $ySize Vertical size. 191 * @param int $xres Horizontal resolution. 192 * @return int drawing position. 193 * @access private 194 */ 195 private function DrawStop($DrawPos, $yPos, $ySize, $xres) { 196 /* Stop code is '*' */ 197 $narrow = BCD_C39_NARROW_BAR * $xres; 198 $wide = BCD_C39_WIDE_BAR * $xres; 199 $this->DrawSingleBar($DrawPos, $yPos, $narrow , $ySize); 200 $DrawPos += $narrow; 201 $DrawPos += $wide; 202 $this->DrawSingleBar($DrawPos, $yPos, $narrow , $ySize); 203 $DrawPos += $narrow; 204 $DrawPos += $narrow; 205 $this->DrawSingleBar($DrawPos, $yPos, $wide , $ySize); 206 $DrawPos += $wide; 207 $DrawPos += $narrow; 208 $this->DrawSingleBar($DrawPos, $yPos, $wide , $ySize); 209 $DrawPos += $wide; 210 $DrawPos += $narrow; 211 $this->DrawSingleBar($DrawPos, $yPos, $narrow, $ySize); 212 $DrawPos += $narrow; 213 return $DrawPos; 214 } 215 216 /** 217 * Draws the barcode object. 218 * @param int $xres Horizontal resolution. 219 * @return bool true in case of success. 220 */ 221 public function DrawObject($xres) { 222 $len = strlen($this->mValue); 223 224 $narrow = BCD_C39_NARROW_BAR * $xres; 225 $wide = BCD_C39_WIDE_BAR * $xres; 226 227 if (($size = $this->GetSize($xres))==0) { 228 return false; 229 } 230 231 $cPos = 0; 232 if ($this->mStyle & BCS_ALIGN_CENTER) $sPos = (integer)(($this->mWidth - $size ) / 2); 233 else if ($this->mStyle & BCS_ALIGN_RIGHT) $sPos = $this->mWidth - $size; 234 else $sPos = 0; 235 236 /* Total height of bar code -Bars only- */ 237 if ($this->mStyle & BCS_DRAW_TEXT) $ysize = $this->mHeight - BCD_DEFAULT_MAR_Y1 - BCD_DEFAULT_MAR_Y2 - $this->GetFontHeight($this->mFont); 238 else $ysize = $this->mHeight - BCD_DEFAULT_MAR_Y1 - BCD_DEFAULT_MAR_Y2; 239 240 /* Draw text */ 241 if ($this->mStyle & BCS_DRAW_TEXT) { 242 if ($this->mStyle & BCS_STRETCH_TEXT) { 243 for ($i=0;$i<$len;$i++) { 244 $this->DrawChar($this->mFont, $sPos+($narrow*6+$wide*3)+($size/$len)*$i, 245 $ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET, $this->mValue[$i]); 246 } 247 } else {/* Center */ 248 $text_width = $this->GetFontWidth($this->mFont) * strlen($this->mValue); 249 $this->DrawText($this->mFont, $sPos+(($size-$text_width)/2)+($narrow*6+$wide*3), 250 $ysize + BCD_DEFAULT_MAR_Y1 + BCD_DEFAULT_TEXT_OFFSET, $this->mValue); 251 } 252 } 253 254 $DrawPos = $this->DrawStart($sPos, BCD_DEFAULT_MAR_Y1 , $ysize, $xres); 255 do { 256 $c = $this->GetCharIndex($this->mValue[$cPos]); 257 $cset = $this->mCharSet[$c]; 258 $this->DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, ($cset[0] == '0') ? $narrow : $wide , $ysize); 259 $DrawPos += ($cset[0] == '0') ? $narrow : $wide; 260 $DrawPos += ($cset[1] == '0') ? $narrow : $wide; 261 $this->DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, ($cset[2] == '0') ? $narrow : $wide , $ysize); 262 $DrawPos += ($cset[2] == '0') ? $narrow : $wide; 263 $DrawPos += ($cset[3] == '0') ? $narrow : $wide; 264 $this->DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, ($cset[4] == '0') ? $narrow : $wide , $ysize); 265 $DrawPos += ($cset[4] == '0') ? $narrow : $wide; 266 $DrawPos += ($cset[5] == '0') ? $narrow : $wide; 267 $this->DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, ($cset[6] == '0') ? $narrow : $wide , $ysize); 268 $DrawPos += ($cset[6] == '0') ? $narrow : $wide; 269 $DrawPos += ($cset[7] == '0') ? $narrow : $wide; 270 $this->DrawSingleBar($DrawPos, BCD_DEFAULT_MAR_Y1, ($cset[8] == '0') ? $narrow : $wide , $ysize); 271 $DrawPos += ($cset[8] == '0') ? $narrow : $wide; 272 $DrawPos += $narrow; /* Space between chars */ 273 $cPos++; 274 } while ($cPos<$len); 275 $DrawPos = $this->DrawStop($DrawPos, BCD_DEFAULT_MAR_Y1 , $ysize, $xres); 276 return true; 277 } 278 } 279 280 //============================================================+ 281 // END OF FILE 282 //============================================================+ 283 ?>
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| Generated: Fri Nov 28 20:08:37 2014 | Cross-referenced by PHPXref 0.7.1 |