Sorry, I know this is for the wrong group - I just started here as the major
part of this app is related to a data base - this is just the fancy stuff at
the front. I have been able to get the screen to redraw by putting a
variable in the url that when set causes a <meta> tag to be sent with a
refresh option - it is ugly as it causes the screen to draw then immediatly
redraw. I have tried all combinations of header()'s but I am missing something.
Thanks,
Malcolm
view.php
<?
//every expire header under the sun
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
//so far this is the only refresh that works as it forces the page to
//expire and reload itself - causes ugly screen redraw
if(isset($reload))
echo "<meta HTTP-EQUIV=\"refresh\" CONTENT=\"0;
URL=./view.phtml?pic=$pic\">";
//file containing various global variables
include('./pview.inc');
//build the complete path to the picture file
$pic_file = $base_dir . $pic_dir_name . "/" . $pic;
//rotate function - calls jpegtran to do the work
function rotate($pic, $thu, $ro, $name){
$temp_file = "/tmp/temp_pic";
if($ro == "CCW")
$rot = 270;
else
$rot = 90;
exec("./jpegtran -rot $rot $pic> $temp_file");
unlink($pic);
copy($temp_file, $pic);
unlink($temp_file);
exec("./jpegtran -rot $rot $thu > $temp_file");
unlink($thu);
copy($temp_file, $thu);
unlink($temp_file);
}
//if rotate variable is set then call rotate()
if(isset($ro)){
$thu_file = $base_dir . $thumb_dir_name . "/"
. $thumbnail_prefix . strtolower($pic);
rotate($pic_file, $thu_file, $ro, $pic);
//another attempted screen refresh. forces the meta tag
header("Location: ./view.phtml?pic=$pic&reload=true");
}
//Script to set the image size according to browser size
echo "<script>
function draw_image(width, height){
if(navigator.appName == 'Netscape' && document.layers != null){
wid = window.innerWidth;
hit = window.innerHeight;
}
if(document.all != null){
wid = document.body.clientWidth;
hit = document.body.clientHeight;
}
wFactor = wid / width;
hFactor = hit / height;
if(wFactor < hFactor)
fact = wFactor;
else
fact = hFactor;
fact = fact * 0.75;
nwid = width * fact;
nhit = height * fact;
document.images[0].height = Math.round(nhit);
document.images[0].width = Math.round(nwid);
}
</script>";
//get info abou the file for display
list($width, $height) = GetImageSize($pic_file);
$size = floor(filesize($pic_file) / 1024);
//build the screen
echo "<i><b>Image</b></i> - " . $pic;
echo "<hr>";
echo "<center>";
echo "<img src=$pic_file onload='draw_image(". $width . ", " . $height .
")'>";
echo "<br><font size=-1><i>(Image Details: width - " . $width
. ", height - " . $height
. ", size - " . $size . "k) </i></font>";
//user options to rotate or return to the index page
echo "<p>
<a href=$PHP_SELF?pic=$pic&ro=CCW>[Rotate CCW]</a> 
<a href=./index.phtml?ref=true>[HOME]</a> 
<a href=$PHP_SELF?pic=$pic&ro=CW>[Rotate CW]</a></p>";
echo "</center>";
echo "<hr>";
//a bit of self promotion
echo "<i><font size=-1><b>Picture Viewer</b>
- Developed by Whitehouse Productions 2001</font></i>";
?>
>X-POP3-Rcpt: mwhite@guru
>Return-Path: <[EMAIL PROTECTED]>
>From: "Jon Farmer" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>, "Malcolm White" <[EMAIL PROTECTED]>
>References: <[EMAIL PROTECTED]>
>Subject: Re: [PHP-DB] Image Sizes
>Date: Sun, 9 Dec 2001 08:43:39 -0000
>X-MSMail-Priority: Normal
>X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2479.0006
>
>> I slved it with a javascript function - now I can't get the page refresh
>to
>> work properly - I have implimented the ability to rotate the images but
>> although the image i rotated it's contents aren't. I have used all maner
>of
>> header()'s to try and solve it but it only works when I physically hit the
>> refresh button on the browser.
>
>OK well can you show us the code? As you dont give much to go on. BTW you
>are posting to the wrong list you should use the PHP-General list as this
>list is for database issues.
>
>--
>Jon Farmer
>Systems Programmer, Entanet www.enta.net
>Tel 01952 428969 Mob 07763 620378
>PGP Key available, send email with subject: Send PGP Key
>
>
>
>
---------------------------------------
| WHITEHOUSE PRODUCTIONS |
| Malcolm White |
---------------------------------------
| ph: +61 2 9798 4645 |
| fax: +61 2 9716 6097 |
| mob: +61 414 860 742 |
| mob fax: +61 414 860 745 |
| email: [EMAIL PROTECTED] |
| web: www.whitehouseprod.com.au |
---------------------------------------
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