/**
* Returns boundings of text depending on the available font extension
*
* @param float $size Textsize
* @param ezcGraphFontOptions $font Font
* @param string $text Text
* @return ezcGraphBoundings Boundings of text
*/
protected function getTextBoundings($size, ezcGraphFontOptions $font, $text)
{
switch ($font->type) {
case ezcGraph::PS_FONT:
if (!isset($this->psFontRessources[$font->path])) {
$this->psFontRessources[$font->path] = imagePsLoadFont($font->path);
}
$boundings = imagePsBBox($text, $this->psFontRessources[$font->path], $size);
return new ezcGraphBoundings($boundings[0], $boundings[1], $boundings[2], $boundings[3]);
case ezcGraph::TTF_FONT:
switch (true) {
case ezcBaseFeatures::hasFunction('imageftbbox') && !$this->options->forceNativeTTF:
$boundings = imageFtBBox($size, 0, $font->path, $text);
return new ezcGraphBoundings($boundings[0], $boundings[1], $boundings[4], $boundings[5]);
case ezcBaseFeatures::hasFunction('imagettfbbox'):
$boundings = imageTtfBBox($size, 0, $font->path, $text);
return new ezcGraphBoundings($boundings[0], $boundings[1], $boundings[4], $boundings[5]);
}
break;
}
}
}
/**if (!file_exists($font))
$font = $_SERVER["DOCUMENT_ROOT"]."/HDWFormCaptcha/".$font;
if (!file_exists($font))
$font = dirname(__FILE__)."/".$font;
*/
$font_size = rand($min_size, $max_size);
$angle = rand(-15, 15);
if (function_exists("imagettfbbox") && function_exists("imagettftext")) {
$box = imagettfbbox($font_size, $angle, $font, $str);
$x = (int) ($imgX - $box[4]) / 2;
$y = (int) ($imgY - $box[5]) / 2;
imagettftext($image, $font_size, $angle, $x, $y, $text_col, $font, $str);
} else {
if (function_exists("imageFtBBox") && function_exists("imageFTText")) {
$box = imageFtBBox($font_size, $angle, $font, $str);
$x = (int) ($imgX - $box[4]) / 2;
$y = (int) ($imgY - $box[5]) / 2;
imageFTText($image, $font_size, $angle, $x, $y, $text_col, $font, $str);
} else {
$angle = 0;
$font = 6;
$wf = ImageFontWidth(6) * strlen($str);
$hf = ImageFontHeight(6);
$x = (int) ($imgX - $wf) / 2;
$y = (int) ($imgY - $hf) / 2;
imagestring($image, $font, $x, $y, $str, $text_col);
}
}
header("Content-type: image/png");
imagepng($image);