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<?php
/**
* BCGFont.php
*--------------------------------------------------------------------
*
* Holds font family and size.
*
*--------------------------------------------------------------------
* Revision History
* v2.0.0 23 apr 2008 Jean-Sébastien Goupil New Version Update
* v1.2.3 6 feb 2006 Jean-Sébastien Goupil Correct getWidth()
* v1.2.3b 30 dec 2005 Jean-Sébastien Goupil Add getUnderBaseline()
* V1.2.1 27 jun 2005 Jean-Sebastien Goupil New
*--------------------------------------------------------------------
* $Id: BCGFont.php,v 1.7 2009/11/09 04:08:41 jsgoupil Exp $
*--------------------------------------------------------------------
* Copyright (C) Jean-Sebastien Goupil
* http://www.barcodephp.com
*/
class BCGFont {
private $path;
private $text;
private $size;
private $box;
/**
* Constructor
*
* @param string $fontPath path to the file
* @param int $size size in point
*/
public function __construct($fontPath, $size) {
$this->path = $fontPath;
$this->size = $size;
}
/**
* Text associated to the font
*
* @param string text
*/
public function setText($text) {
$this->text = $text;
$im = imagecreate(1, 1);
$this->box = imagettftext($im, $this->size, 0, 0, 0, imagecolorallocate($im, 0, 0, 0), $this->path, $this->text);
}
/**
* Returns the width that the text takes to be written
*
* @return float
*/
public function getWidth() {
if ($this->box !== NULL) {
// Bug fixed : a number is aligned on the "right" in the box...
// If we are writting the number "1" with minX at 2 and maxX at 10
// The maxWidth will be 10 and not 8 because we don't squeeze the number
// on its left. So now we don't remove the minX.
return abs(max($this->box[2], $this->box[4]));
} else {
return 0;
}
}
/**
* Returns the height that the text takes.
*
* @return float
*/
public function getHeight() {
if ($this->box !== NULL) {
return (float) abs(max($this->box[5], $this->box[7]) - min($this->box[1], $this->box[3]));
} else {
return 0.0;
}
}
/**
* Returns the number of pixel under the baseline located at 0.
*
* @return float
*/
public function getUnderBaseline() {
// Y for imagettftext : This sets the position of the fonts baseline, not the very bottom of the character.
return (float) max($this->box[1], $this->box[3]);
}
/**
* Draws the text on the image at a specific position.
* $x and $y represent the left bottom corner.
*
* @param resource $im
* @param int $color
* @param int $x
* @param int $y
*/
public function draw(&$im, $color, $x, $y) {
imagettftext($im, $this->size, 0, $x, $y, $color, $this->path, $this->text);
}
}
?>
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