class pBarcode128 in Visitors 7.2

Hierarchy

• class \pBarcode128

File

pChart/class/pBarcode128.class.php, line 17

class pBarcode128 {
  var $Codes;
  var $Reverse;
  var $Result;
  var $pChartObject;
  var $CRC;

  /* Class creator */
  function pBarcode128($BasePath = "") {
    $this->Codes = "";
    $this->Reverse = "";
    $FileHandle = @fopen($BasePath . "data/128B.db", "r");
    if (!$FileHandle) {
      die("Cannot find barcode database (" . $BasePath . "128B.db).");
    }
    while (!feof($FileHandle)) {
      $Buffer = fgets($FileHandle, 4096);
      $Buffer = str_replace(chr(10), "", $Buffer);
      $Buffer = str_replace(chr(13), "", $Buffer);
      $Values = preg_split("/;/", $Buffer);
      $this->Codes[$Values[1]]["ID"] = $Values[0];
      $this->Codes[$Values[1]]["Code"] = $Values[2];
      $this->Reverse[$Values[0]]["Code"] = $Values[2];
      $this->Reverse[$Values[0]]["Asc"] = $Values[1];
    }
    fclose($FileHandle);
  }

  /* Return the projected size of a barcode */
  function getSize($TextString, $Format = "") {
    $Angle = isset($Format["Angle"]) ? $Format["Angle"] : 0;
    $ShowLegend = isset($Format["ShowLegend"]) ? $Format["ShowLegend"] : FALSE;
    $LegendOffset = isset($Format["LegendOffset"]) ? $Format["LegendOffset"] : 5;
    $DrawArea = isset($Format["DrawArea"]) ? $Format["DrawArea"] : FALSE;
    $FontSize = isset($Format["FontSize"]) ? $Format["FontSize"] : 12;
    $Height = isset($Format["Height"]) ? $Format["Height"] : 30;
    $TextString = $this
      ->encode128($TextString);
    $BarcodeLength = strlen($this->Result);
    if ($DrawArea) {
      $WOffset = 20;
    }
    else {
      $WOffset = 0;
    }
    if ($ShowLegend) {
      $HOffset = $FontSize + $LegendOffset + $WOffset;
    }
    else {
      $HOffset = 0;
    }
    $X1 = cos($Angle * PI / 180) * ($WOffset + $BarcodeLength);
    $Y1 = sin($Angle * PI / 180) * ($WOffset + $BarcodeLength);
    $X2 = $X1 + cos(($Angle + 90) * PI / 180) * ($HOffset + $Height);
    $Y2 = $Y1 + sin(($Angle + 90) * PI / 180) * ($HOffset + $Height);
    $AreaWidth = max(abs($X1), abs($X2));
    $AreaHeight = max(abs($Y1), abs($Y2));
    return array(
      "Width" => $AreaWidth,
      "Height" => $AreaHeight,
    );
  }
  function encode128($Value, $Format = "") {
    $this->Result = "11010010000";
    $this->CRC = 104;
    $TextString = "";
    for ($i = 1; $i <= strlen($Value); $i++) {
      $CharCode = ord($this
        ->mid($Value, $i, 1));
      if (isset($this->Codes[$CharCode])) {
        $this->Result = $this->Result . $this->Codes[$CharCode]["Code"];
        $this->CRC = $this->CRC + $i * $this->Codes[$CharCode]["ID"];
        $TextString = $TextString . chr($CharCode);
      }
    }
    $this->CRC = $this->CRC - floor($this->CRC / 103) * 103;
    $this->Result = $this->Result . $this->Reverse[$this->CRC]["Code"];
    $this->Result = $this->Result . "1100011101011";
    return $TextString;
  }

  /* Create the encoded string */
  function draw($Object, $Value, $X, $Y, $Format = "") {
    $this->pChartObject = $Object;
    $R = isset($Format["R"]) ? $Format["R"] : 0;
    $G = isset($Format["G"]) ? $Format["G"] : 0;
    $B = isset($Format["B"]) ? $Format["B"] : 0;
    $Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
    $Height = isset($Format["Height"]) ? $Format["Height"] : 30;
    $Angle = isset($Format["Angle"]) ? $Format["Angle"] : 0;
    $ShowLegend = isset($Format["ShowLegend"]) ? $Format["ShowLegend"] : FALSE;
    $LegendOffset = isset($Format["LegendOffset"]) ? $Format["LegendOffset"] : 5;
    $DrawArea = isset($Format["DrawArea"]) ? $Format["DrawArea"] : FALSE;
    $AreaR = isset($Format["AreaR"]) ? $Format["AreaR"] : 255;
    $AreaG = isset($Format["AreaG"]) ? $Format["AreaG"] : 255;
    $AreaB = isset($Format["AreaB"]) ? $Format["AreaB"] : 255;
    $AreaBorderR = isset($Format["AreaBorderR"]) ? $Format["AreaBorderR"] : $AreaR;
    $AreaBorderG = isset($Format["AreaBorderG"]) ? $Format["AreaBorderG"] : $AreaG;
    $AreaBorderB = isset($Format["AreaBorderB"]) ? $Format["AreaBorderB"] : $AreaB;
    $TextString = $this
      ->encode128($Value);
    if ($DrawArea) {
      $X1 = $X + cos(($Angle - 135) * PI / 180) * 10;
      $Y1 = $Y + sin(($Angle - 135) * PI / 180) * 10;
      $X2 = $X1 + cos($Angle * PI / 180) * (strlen($this->Result) + 20);
      $Y2 = $Y1 + sin($Angle * PI / 180) * (strlen($this->Result) + 20);
      if ($ShowLegend) {
        $X3 = $X2 + cos(($Angle + 90) * PI / 180) * ($Height + $LegendOffset + $this->pChartObject->FontSize + 10);
        $Y3 = $Y2 + sin(($Angle + 90) * PI / 180) * ($Height + $LegendOffset + $this->pChartObject->FontSize + 10);
      }
      else {
        $X3 = $X2 + cos(($Angle + 90) * PI / 180) * ($Height + 20);
        $Y3 = $Y2 + sin(($Angle + 90) * PI / 180) * ($Height + 20);
      }
      $X4 = $X3 + cos(($Angle + 180) * PI / 180) * (strlen($this->Result) + 20);
      $Y4 = $Y3 + sin(($Angle + 180) * PI / 180) * (strlen($this->Result) + 20);
      $Polygon = array(
        $X1,
        $Y1,
        $X2,
        $Y2,
        $X3,
        $Y3,
        $X4,
        $Y4,
      );
      $Settings = array(
        "R" => $AreaR,
        "G" => $AreaG,
        "B" => $AreaB,
        "BorderR" => $AreaBorderR,
        "BorderG" => $AreaBorderG,
        "BorderB" => $AreaBorderB,
      );
      $this->pChartObject
        ->drawPolygon($Polygon, $Settings);
    }
    for ($i = 1; $i <= strlen($this->Result); $i++) {
      if ($this
        ->mid($this->Result, $i, 1) == 1) {
        $X1 = $X + cos($Angle * PI / 180) * $i;
        $Y1 = $Y + sin($Angle * PI / 180) * $i;
        $X2 = $X1 + cos(($Angle + 90) * PI / 180) * $Height;
        $Y2 = $Y1 + sin(($Angle + 90) * PI / 180) * $Height;
        $Settings = array(
          "R" => $R,
          "G" => $G,
          "B" => $B,
          "Alpha" => $Alpha,
        );
        $this->pChartObject
          ->drawLine($X1, $Y1, $X2, $Y2, $Settings);
      }
    }
    if ($ShowLegend) {
      $X1 = $X + cos($Angle * PI / 180) * (strlen($this->Result) / 2);
      $Y1 = $Y + sin($Angle * PI / 180) * (strlen($this->Result) / 2);
      $LegendX = $X1 + cos(($Angle + 90) * PI / 180) * ($Height + $LegendOffset);
      $LegendY = $Y1 + sin(($Angle + 90) * PI / 180) * ($Height + $LegendOffset);
      $Settings = array(
        "R" => $R,
        "G" => $G,
        "B" => $B,
        "Alpha" => $Alpha,
        "Angle" => -$Angle,
        "Align" => TEXT_ALIGN_TOPMIDDLE,
      );
      $this->pChartObject
        ->drawText($LegendX, $LegendY, $TextString, $Settings);
    }
  }
  function left($value, $NbChar) {
    return substr($value, 0, $NbChar);
  }
  function right($value, $NbChar) {
    return substr($value, strlen($value) - $NbChar, $NbChar);
  }
  function mid($value, $Depart, $NbChar) {
    return substr($value, $Depart - 1, $NbChar);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
pBarcode128::$Codes		property
pBarcode128::$CRC		property
pBarcode128::$pChartObject		property
pBarcode128::$Result		property
pBarcode128::$Reverse		property
pBarcode128::draw		function
pBarcode128::encode128		function
pBarcode128::getSize		function
pBarcode128::left		function
pBarcode128::mid		function
pBarcode128::pBarcode128		function
pBarcode128::right		function