can output PDF or PNG now

interface/forms/vitals/growthchart/chart.php

@@ -333,8 +333,39 @@ function get_age($dob, $date=null) {
 
  $count++; 
 }
-
-header("Content-type: image/png"); 
-imagepng($im);
-imagedestroy($im);
+
+if ($_GET['pdf'] == 1) {
+ require_once ($GLOBALS['fileroot'] . "/library/classes/class.ezpdf.php");
+ $pdf =& new Cezpdf("LETTER");
+ $pdf->ezSetMargins(0,0,0,0);
+
+ // we start with one large image, break it into two pages
+ $page1 = imagecreate((imagesx($im)/2),imagesy($im));
+ $page2 = imagecreate((imagesx($im)/2),imagesy($im));
+ imagecopy($page1, $im, 0,0, 0,0,(imagesx($im)/2),imagesy($im));
+ imagecopy($page2, $im, 0,0, (imagesx($im)/2),0,imagesx($im),imagesy($im));
+ imagedestroy($im);
+
+ // each page is built
+ $tmpfilename = tempnam("/tmp", "oemr");
+ imagepng($page1,$tmpfilename);
+ imagedestroy($page1);
+ $pdf->ezImage($tmpfilename);
+ $pdf->ezNewPage();
+ imagepng($page2,$tmpfilename);
+ imagedestroy($page2);
+ $pdf->ezImage($tmpfilename);
+
+ // temporary file is removed
+ unlink($tmpfilename);
+
+ // output the PDF
+ $pdf->ezStream();
+}
+else {
+ // older style chart that is simply a PNG image
+ header("Content-type: image/png"); 
+ imagepng($im);
+ imagedestroy($im);
+}
 ?>