public function _StrokeLegend($aImg, $x, $y, $scaling = 1, $aReturnWidth = false)
{
if (!$this->legend->iShow) {
return 0;
}
$nlc = count($this->iLegColors);
$nlw = count($this->iLegweights);
// Setup font for ranges
$value = new Text\Text();
$value->SetAlign('center', 'bottom');
$value->SetFont($this->legend->iLblFontFamily, $this->legend->iLblFontStyle, $this->legend->iLblFontSize * $scaling);
$value->SetColor($this->legend->iLblFontColor);
// Remember x-center
$xcenter = $x;
// Construct format string
$fmt = $this->legend->iFormatString . '-' . $this->legend->iFormatString;
// Make sure that the length of each range is enough to cover the
// size of the labels
$tst = sprintf($fmt, $this->iRanges[0], $this->iRanges[1]);
$value->Set($tst);
$w = $value->GetWidth($aImg);
$l = round(max($this->legend->iLength * $scaling, $w * 1.5));
$r = $this->legend->iCircleRadius * $scaling;
$len = 2 * $r + $this->scale->iMaxNum * $l;
// We are called just to find out the width
if ($aReturnWidth) {
return $len;
}
$x -= round($len / 2);
$x += $r;
// 4 pixels extra vertical margin since the circle sometimes is +/- 1 pixel of the
// theorethical radius due to imperfection in the GD library
//$y -= round(max($r,$scaling*$this->iLegweights[($this->scale->iMaxNum-1) % $nlw])+4*$scaling);
$y -= ($this->legend->iCircleRadius + 2) * $scaling + $this->legend->iBottomMargin * $scaling;
// Adjust for bottom text
if ($this->legend->iTxt != '') {
// Setup font for text
$value->Set($this->legend->iTxt);
$y -= $value->GetHeight($aImg);
}
// Stroke 0-circle
$this->_ThickCircle($aImg, $x, $y, $r, $this->legend->iCircleWeight, $this->legend->iCircleColor);
// Remember the center of the circe
$xc = $x;
$yc = $y;
$value->SetAlign('center', 'bottom');
$x += $r + 1;
// Stroke all used ranges
$txty = $y - round($this->iLegweights[($this->scale->iMaxNum - 1) % $nlw] * $scaling) - 4 * $scaling;
if ($this->scale->iMaxNum >= count($this->iRanges)) {
Util\JpGraphError::RaiseL(22007);
//('To few values for the range legend.');
}
$i = 0;
$idx = 0;
while ($i < $this->scale->iMaxNum) {
$y1 = $y - round($this->iLegweights[$i % $nlw] * $scaling);
$y2 = $y + round($this->iLegweights[$i % $nlw] * $scaling);
$x2 = $x + $l;
$aImg->SetColor($this->iLegColors[$i % $nlc]);
$aImg->FilledRectangle($x, $y1, $x2, $y2);
if ($this->iRangeStyle == RANGE_OVERLAPPING) {
$lbl = sprintf($fmt, $this->iRanges[$idx], $this->iRanges[$idx + 1]);
} else {
$lbl = sprintf($fmt, $this->iRanges[$idx], $this->iRanges[$idx + 1]);
++$idx;
}
$value->Set($lbl);
$value->Stroke($aImg, $x + $l / 2, $txty);
$x = $x2;
++$i;
++$idx;
}
// Setup circle font
$value->SetFont($this->legend->iCircleFontFamily, $this->legend->iCircleFontStyle, $this->legend->iCircleFontSize * $scaling);
$value->SetColor($this->legend->iCircleFontColor);
// Stroke 0-circle text
$value->Set($this->legend->iZCircleTxt);
$value->SetAlign('center', 'center');
$value->ParagraphAlign('center');
$value->Stroke($aImg, $xc, $yc);
// Setup circle font
$value->SetFont($this->legend->iTxtFontFamily, $this->legend->iTxtFontStyle, $this->legend->iTxtFontSize * $scaling);
$value->SetColor($this->legend->iTxtFontColor);
// Draw the text under the legend
$value->Set($this->legend->iTxt);
$value->SetAlign('center', 'top');
$value->SetParagraphAlign('center');
$value->Stroke($aImg, $xcenter, $y2 + $this->legend->iTxtMargin * $scaling);
}
