TrueType Word-Wrap

douceur

I've been messing around with adding text to images with php, and I was wondering if there is a good way to simulate a "word-wrap" when using a variable width truetype font..

Any help would be appreciated. Thanks.

barand

You just need an array of widths for each font character. From then on its just a matter of keeping track of the total character width as you build the line of text.

Don't you hate that word 'just' ?

douceur

alright, thanks. is there an easy way to find out the widths of characters for a certain font? or do i have to actually write something with each character and then measure it somehow?

Mordecai

Despite what Barand said, you won't have to do it for every character individually, just for the string. PHP has this nifty little function called imagettftextbbox(), or a bounding TTF box. The bounding box has the coordinates that the string takes up. To get the width, use something like this:

$size = imagettfbbox($textsize,0,"fonts/".$fontfile.".ttf",$line);
$tw = abs($size[4]-$size[0]);
$upper = abs($size[5]);
$under = $size[1];
$th = $upper+$under;
imagettftext($im,$textsize,0,0,0+$upper,$black,"fonts/".$fontfile.".ttf",$line);

$tw is the width and $th is the height. I don't know where I got the width and height correction code snip, but I think it was right off imagettfbbox()'s page.

Hope this helps.

douceur

hey, thanks a lot. i appreciate the help.