function pChart::setLabel in Visitors 7.0

Same name and namespace in other branches

1. 8 pchart/pChart.inc \pChart::setLabel()

File

pchart/pChart.inc, line 701

Class

pChart

Code

function setLabel(&$Data, &$DataDescription, $SerieName, $ValueName, $Caption, $R = 210, $G = 210, $B = 210) {

  /* Validate the Data and DataDescription array */
  $this
    ->validateDataDescription("setLabel", $DataDescription);
  $this
    ->validateData("setLabel", $Data);
  $C_Label = imagecolorallocate($this->Picture, $R, $G, $B);
  $C_Shadow = imagecolorallocate($this->Picture, $R - 30, $G - 30, $B - 30);
  $C_TextColor = imagecolorallocate($this->Picture, 0, 0, 0);
  $Cp = 0;
  $Found = FALSE;
  foreach ($Data as $Key => $Value) {
    if ($Data[$Key][$DataDescription["Position"]] == $ValueName) {
      $NumericalValue = $Data[$Key][$SerieName];
      $Found = TRUE;
    }
    if (!$Found) {
      $Cp++;
    }
  }
  $XPos = $this->GArea_X1 + $this->GAreaXOffset + $this->DivisionWidth * $Cp + 2;
  $YPos = $this->GArea_Y2 - ($NumericalValue - $this->VMin) * $this->DivisionRatio;
  $Position = imageftbbox($this->FontSize, 0, $this->FontName, $Caption);
  $TextHeight = $Position[3] - $Position[5];
  $TextWidth = $Position[2] - $Position[0];
  $TextOffset = floor($TextHeight / 2);

  // Shadow
  $Poly = array(
    $XPos + 1,
    $YPos + 1,
    $XPos + 9,
    $YPos - $TextOffset,
    $XPos + 8,
    $YPos + $TextOffset + 2,
  );
  imagefilledpolygon($this->Picture, $Poly, 3, $C_Shadow);
  $this
    ->drawLine($XPos, $YPos + 1, $XPos + 9, $YPos - $TextOffset - 1, $R - 30, $G - 30, $B - 30);
  $this
    ->drawLine($XPos, $YPos + 1, $XPos + 9, $YPos + $TextOffset + 3, $R - 30, $G - 30, $B - 30);
  $this
    ->drawFilledRectangle($XPos + 9, $YPos - $TextOffset, $XPos + 13 + $TextWidth, $YPos + $TextOffset + 2, $R - 30, $G - 30, $B - 30);

  // Label background
  $Poly = array(
    $XPos,
    $YPos,
    $XPos + 8,
    $YPos - $TextOffset - 1,
    $XPos + 8,
    $YPos + $TextOffset + 1,
  );
  imagefilledpolygon($this->Picture, $Poly, 3, $C_Label);
  $this
    ->drawLine($XPos - 1, $YPos, $XPos + 8, $YPos - $TextOffset - 2, $R, $G, $B);
  $this
    ->drawLine($XPos - 1, $YPos, $XPos + 8, $YPos + $TextOffset + 2, $R, $G, $B);
  $this
    ->drawFilledRectangle($XPos + 8, $YPos - $TextOffset - 1, $XPos + 12 + $TextWidth, $YPos + $TextOffset + 1, $R, $G, $B);
  imagettftext($this->Picture, $this->FontSize, 0, $XPos + 10, $YPos + $TextOffset, $C_TextColor, $this->FontName, $Caption);
}