Chief Delphi - File resize?

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Website Design/Showcase (http://www.chiefdelphi.com/forums/forumdisplay.php?f=64)

- - File resize? (http://www.chiefdelphi.com/forums/showthread.php?t=30680)

Im working on a website right now and i made a script in php to upload an image and then display it on a different page. It works very well. My only problem is that i want to be able to turn those images into thumbnails with small file sizes automatically once i upload the file to my server. I don't really know that much php and i have no idea how i would accomplish this

Re: File resize?

I don't know a lot about php either, but I think I saw somewhere that Photoshop has a utility included in it somewhere that allows you to create php galleries similar to Windows Explorer Filmstrip picture viewing... does your team have a copy of PS? Maybe other editors have this same feature (Paint Shop Pro, CoredDRAW, etc.)
Check those out.

Re: File resize?

yes we do have a copy of photoshop but i've never heard of a utility like that. But i also do not know much about photoshop

Re: File resize?

Download a copy of some forum software like Vbulletin, phpBB, or Invision, open it in Dreamweaver, and do a code search of the entire folder that you have to make into a site for "image resize" or "resize".

Re: File resize?

you'll want another library such as GD or ImageMagick to do the resizing. Googling those should give you plenty of material to get you started.

Re: File resize?

Quote:

Originally Posted by ryan_f

Could you just use something like Gallery?

If not, I've done some work on that, you can check this link:

http://users.wpi.edu/~woloi/pictures.txt

I haven't looked at that since early summer, so I can't say I know what I did, but if you can't figure out what I did, I'd be more than happy to look back at it and help you. I believe the only problem should be mess and such, cause I never actually cleaned that code up.

Specifically, look at the following code, though it will need to be modified for your purposes:

Code:

 function Thumbnails ($pics, $root, $thumbnails) {

#Pre: $pics is filled

#Post: Thumbnails are created for every new picture in directory



        if ( !is_dir($thumbnails)) {

                mkdir ($thumbnails);

                chmod ($thumbnails, 0755); 

        }

        else if (is_dir ($thumbnails)) {

                for ($i = 0; $i < count($pics); $i++) {

                        if (!is_file($thumbnails . '/' . $pics[$i])) {

                                exec ("convert $root/$pics[$i] -resize 150x150 +profile '*' $thumbnails/$pics[$i]");

                                chmod ("$thumbnails/$pics[$i]", 0755);

                        }

                }

Hope that helps.

Re: File resize?

In CPanel, does Fantastico have anything useful? (providing that you have CPanel and Fantastico)

Re: File resize?

Quote:

Originally Posted by Ian W.

Specifically, look at the following code, though it will need to be modified for your purposes:

You ran "convert", so I assume you are using ImageMagick on your end, right?

Re: File resize?

Quote:

Originally Posted by ryan_f

Here is a snippet of code i wrote for an image gallery a while back. It has extensie debug statements that will give you som insight into its operation. It was adapted from some code i found in the PHP documentation. Note your server must have the GD library installed for this to work

PHP Code:


		
			
function image_createThumb($src,$dest,$maxWidth,$maxHeight,$quality=100) {

  print '$src  = ' . $src . '<br>';

  if (isset($dest)) {print '$dest is set<br>';} else {print '$dest is not set<br>';}

   if (file_exists($src)  && isset($dest)) {

        print('JPEG Quality: ' . $quality .'<BR>');

       // path info

       $destInfo  = pathInfo($dest);



       // image src size

       $srcSize  = getImageSize($src);



       // image dest size $destSize[0] = width, $destSize[1] = height

       $srcRatio  = $srcSize[0]/$srcSize[1]; // width/height ratio

       $destRatio = $maxWidth/$maxHeight;

       if ($destRatio > $srcRatio) {

           $destSize[1] = $maxHeight;

           $destSize[0] = $maxHeight*$srcRatio;

       }

       else {

           $destSize[0] = $maxWidth;

           $destSize[1] = $maxWidth/$srcRatio;

       }



       // path rectification

       if ($destInfo['extension'] == "gif") {

           $dest = substr_replace($dest, 'jpg', -3);

       }



       // true color image, with anti-aliasing

       print '$maxHeight  = ' . $maxHeight . '<br>';

       print '$maxWidth   = ' . $maxWidth . '<br>';

       print 'src height  = ' . $srcSize[1] . '<br>';

       print 'src width   = ' . $srcSize[0] . '<br>';

       print 'dest height = ' . $destSize[1] . '<br>';

       print 'dest width  = ' . $destSize[0] . '<br>';

       $destImage = imagecreatetruecolor($destSize[0],$destSize[1]);

       imageAntiAlias($destImage,true);



       // src image

       switch ($srcSize[2]) {

           case 1: //GIF

           $srcImage = imageCreateFromGif($src);

           break;



           case 2: //JPEG

           $srcImage = imageCreateFromJpeg($src);

           break;



           case 3: //PNG

           $srcImage = imageCreateFromPng($src);

           break;



           default:

           return false;

           break;

       }



       // resampling

       imageCopyResampled($destImage, $srcImage, 0, 0, 0, 0,$destSize[0],$destSize[1],$srcSize[0],$srcSize[1]);



       // generating image

       switch ($srcSize[2]) {

           case 1:

           case 2:

           imageJpeg($destImage,$dest,$quality);

           break;



           case 3:

           imagePng($destImage,$dest);

           break;

       }

       return true;

   }

   else {

       print 'file does not exist<br>';

       return false;



   }

}

Re: File resize?

Quote:

Originally Posted by ahecht

You ran "convert", so I assume you are using ImageMagick on your end, right?

Yes, I can't remember why I picked ImageMagick, but it works, and it's fairly easy to use.