php gurus: need help w/ GD text-to-image on-the-fly w/ word-wrap

[piku]

trying to achieve this, you can see what its currently doing here

just wondering if someone already got something like this but running well...? TIA.

here's the code in the image(.php) on the right side...

<?
function myWordWrap($txt,$font,$size,$width)
{
   /*
       word-wrapper.  gets bounding box sizes for each word in a string, then
       strings words together up to desired width. calls strpos and
       imagettfbbox only once per word - so very fast.
       this version reconcatenates the words with a <br> character where
       the line break should be.
   */
   $txt.=" "; // guaranteed to find end of line
   $spaces=array();
   $wids=array();
   $i=0;
   while(true)
   {
       $j=strpos(substr($txt,$i)," ");
       if(!($j===false))
       {
           $spaces[]=$j+$i;
           $bbox=imagettfbbox($size,0,$font,substr($txt,$i,$j+1));
           $left=($bbox[0]>$bbox[6])?$bbox[6]:$bbox[0];
           $right=($bbox[2]>$bbox[4])?$bbox[2]:$bbox[4];
           $wids[]=$right-$left;
           $i=$j+$i+1;
       }
       else break;
   }
   $lastspace=-1;
   $cum=0;
   $t2="";
   for($i=0;$i<count($spaces);$i++)
   {
       if((($cum>0)&&($cum+$wids[$i])>$width)) // time for a line break
       {
           $t2.="<br>";
           $cum=0;
           $i--;
       }
       else
       {
           // we'll always get at least one word (even if too wide) thanks to
           // ($cum>0) test above
           $t2.=substr($txt,$lastspace+1,$spaces[$i]-$lastspace);
           $cum+=$wids[$i];
           $lastspace=$spaces[$i];
       }
   }
   return $t2;
} // end function myWordWrap()

// check for user input, if none...use default values
if ( empty($t) ) {
	$t = 'Custom Font PHP-GD On-the-fly: Haettenschweiler 14px';
}
if ( empty($width) ) {
	$width = 436;
}
if ( empty($height) ) {
	$height = 24;
}
if ( empty($font_size) ) {
	$font_size = 14;
}

$text = $t;

$img = imagecreate($width, $height);
$white = imagecolorallocate($img,255,255,255); 
$black = imagecolorallocate($img,0,0,0);
$grayF7F7F7 = imagecolorallocate($img,247,247,247);
$gray333333 = imagecolorallocate($img,51,51,51);
imagefill($img,0,0,$grayF7F7F7); 

// set font
$font = array(1 => "trebuchet","myriadweb","haettenschweiler");
$font_path = 'fonts/'.$font[3].'.ttf';

$textnew = myWordWrap($text,$font_path,$font_size,$width);

// array imagettftext ( resource image, int size, int angle, int x, int y, int color, string fontfile, string text)
Imagettftext($img,$font_size,0,0,14,$gray333333,$font_path,$textnew);

if (function_exists("imagegif")) {
   header("Content-type: image/gif");
   imagegif($img);
} elseif (function_exists("imagejpeg")) {
   header("Content-type: image/jpeg");
   imagejpeg($img, "", 80);
} elseif (function_exists("imagepng")) {
   header("Content-type: image/png");
   imagepng($img);
} elseif (function_exists("imagewbmp")) {
   header("Content-type: image/vnd.wap.wbmp");
   imagewbmp($img);
} else {
   die("No image support in this PHP server");
}
imagedestroy($img);
?>

[-Oz-]

In $font_path, should that be $t instead of $text, sorry, got lost following.

It looks like on the page its flipping out with an extra ' in there like don't. Maybe try putting $t in " " instead of ' '.

Myabe i'll take a close look later. Those are my ideas for now.

Oh yeah:
Imagettftext($img,$font_size,0,0,14,$gray333333,$f ont_path,$textnew);
get rid of the space ins font_path.

[sdjl]

You do realise there's the wordwrap(); PHP function?

David

[piku]

thats when i copied and pasted in the post...it shouldn't be there in the file...

Oh yeah:
Imagettftext($img,$font_size,0,0,14,$gray333333,$f ont_path,$textnew);
get rid of the space ins font_path.

edit: weird, when i edit he quote block it doesn't display the space...hmmm

[piku]

i'll take a look at that--know, or have you come to any functions that will extend the canvas downward by $size when it wraps?

You do realise there's the wordwrap(); PHP function?

David

[sdjl]

I can't say i've used many of the image functions to be honest.

David