function pData::loadPalette in Visitors 7.2

Same name and namespace in other branches

1. 7 pChart/class/pData.class.php \pData::loadPalette()

File

pChart/class/pData.class.php, line 528

Class

pData

Code

function loadPalette($FileName, $Overwrite = FALSE) {
  if (!file_exists($FileName)) {
    return -1;
  }
  if ($Overwrite) {
    $this->Palette = "";
  }
  $fileHandle = @fopen($FileName, "r");
  if (!$fileHandle) {
    return -1;
  }
  while (!feof($fileHandle)) {
    $buffer = fgets($fileHandle, 4096);
    if (preg_match("/,/", $buffer)) {
      list($R, $G, $B, $Alpha) = preg_split("/,/", $buffer);
      if ($this->Palette == "") {
        $ID = 0;
      }
      else {
        $ID = count($this->Palette);
      }
      $this->Palette[$ID] = array(
        "R" => $R,
        "G" => $G,
        "B" => $B,
        "Alpha" => $Alpha,
      );
    }
  }
  fclose($fileHandle);

  /* Apply changes to current series */
  $ID = 0;
  if (isset($this->Data["Series"])) {
    foreach ($this->Data["Series"] as $Key => $Value) {
      if (!isset($this->Palette[$ID])) {
        $this->Data["Series"][$Key]["Color"] = array(
          "R" => 0,
          "G" => 0,
          "B" => 0,
          "Alpha" => 0,
        );
      }
      else {
        $this->Data["Series"][$Key]["Color"] = $this->Palette[$ID];
      }
      $ID++;
    }
  }
}