/includes/12cropimageinc.php

<?php
////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////                                                //////////////////////////
//////////////////////////                 1 2 CROP IMAGE                 //////////////////////////
//////////////////////////                                                //////////////////////////
//////////////////////////             (c) 2002 Roel Meurders             //////////////////////////
//////////////////////////         mail: scripts@roelmeurders.com         //////////////////////////
//////////////////////////                  version 0.2                   //////////////////////////
//////////////////////////                                                //////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////
///// CREDITS: Most Javascript is taken from DHTMLCentral.com and is made by Thomas Brattli. ///////
////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////
///// Modified by:   Ramin Mehran @ March 2005
///// Modifications: Modified substantially to make it
/////				 compatible with Pixelpost v1.4 (Pixelpost.org) and the original php
/////				 file has been broken into seperated parts.
/////  			 Updated in release of Pixelpost 1.5 for PHP 4.4.1 and PHP 5.1.1 compatibility.
/////
///// SVN file version:
///// $Id$
/////
////////////////////////////////////////////////////////////////////////////////////////////////////
// set the 12cropimage file path (in the include directory)

// You do not need to access this if not logged in - securing it
if(!isset($_SESSION["pixelpost_admin"]) || $cfgrow['password'] != $_SESSION["pixelpost_admin"] || isset($_GET["_SESSION"]["pixelpost_admin"]) AND $_GET["_SESSION"]["pixelpost_admin"] == $_SESSION["pixelpost_admin"] || isset($_POST["_SESSION"]["pixelpost_admin"]) AND $_POST["_SESSION"]["pixelpost_admin"] == $_SESSION["pixelpost_admin"] || isset($_COOKIE["_SESSION"]["pixelpost_admin"]) AND $_COOKIE["_SESSION"]["pixelpost_admin"] == $_SESSION["pixelpost_admin"])
{
    die("Try another day!!");
}

$spacer   = "../includes/spacer.gif";       //Relactive path tpo spacer.gif, transparent image
$javafile = "../includes/12cropimage.js";   //Relative path to js-file

// set global variables
global $txt, $imgW,$imgH, $imgProp, $spacer, $redirect, $javafile, $crw, $crh, $org, $res;

/* start up mysql */
mysql_error();

// if the user selected '12c' as the cropping tool
if(isset($_GET['x']) AND $_GET['x'] == '12cropthumb')
{
    $w    = $_GET['sw'];
    $h    = $_GET['sh'];
    $dw   = $_GET['dw'];
    $dh   = $_GET['dh'];
    $file = $_GET['filename'];

    if(createthumbnail_12crop($w,$h,$dw,$dh,$file))
    {
        header("Location: index.php?view=images");// end if 12cropthumb
    }
    else
    {
        echo 'Some error in 12crop: thumb is not created!';
    }
}

// get specified thumbnail width and height
$cfgquery   = mysql_query("SELECT * FROM `".$pixelpost_db_prefix."config`");
$cfgrow     = mysql_fetch_array($cfgquery,MYSQL_ASSOC);
$max_width  = $cfgrow['thumbwidth'];
$max_height = $cfgrow['thumbheight'];


// renaming the variable
$crw = $max_width;
$crh = $max_height;

// initialize the variables with some values
$imgH = 22;
$imgW = 22;
$imgProp = .4;

// save required messages
$txt['cropimage']           = "crop";
$txt['preview']             = "preview";
$txt['bigger']              = "+";
$txt['smaller']             = "-";
$txt['closewindow']         = "close window";
$txt['selectioninpicture']  = "The selection has to be completely on the image.";

/////////////////////////
// Functions

// prepare the cropdiv
function setsize_cropdiv($file)
{
    global $pixelpost_db_prefix, $crw, $crh, $spacer;
    
    $cfgquery = mysql_query("SELECT * FROM `".$pixelpost_db_prefix."config`");
    $cfgrow   = mysql_fetch_array($cfgquery,MYSQL_ASSOC);
    
    // credit to codewalkers.com - there is 90% a tutorial there
    $max_width  = $cfgrow['thumbwidth'];
    $max_height = $cfgrow['thumbheight'];
    
    define('IMAGE_BASE', rtrim($cfgrow['imagepath'],"/"));
    
    $image_path = IMAGE_BASE."/".$file;
    $img = null;
    $ext_exp = explode('.', $image_path);
    $ext_end = end($ext_exp);
    $ext     = strtolower($ext_end);
    
    if ($ext == 'jpg' || $ext == 'jpeg')
    {
        $img = @imagecreatefromjpeg($image_path);
    }
    elseif($ext == 'png')
    {
        $img = @imagecreatefrompng($image_path);
    }
    elseif($ext == 'gif')
    {
        $img = @imagecreatefromgif($image_path);
    }
    
    if($img)
    {
        $imgW = imagesx($img);
        $imgH = imagesy($img);
        $divsize = $imgH+50;
        $imgProp = .8* min($imgW/$max_width, $imgH/$max_height);
        $imgProp1 = $crw*$imgProp;
        $imgProp2 = $crh*$imgProp;
        
        echo "
        <style type=\"text/css\">
            #cropdiv { position:absolute; width:".$imgProp1."px; height:".$imgProp2."px; z-index:2; background-image:url(".$spacer."); }
            #editthumbnail{ position:relative; height:".$divsize."px; visibility: hidden; }
        </style>";
        
        imagedestroy($img);
        return true;
    }
    else
    {
        imagedestroy($img);
        return false;
    }
}

// special createthumbnail which uses 12cropimage
function createthumbnail_12crop($w,$h,$dw,$dh,$file)
{
    global $pixelpost_db_prefix;
    
    $cfgquery = mysql_query("SELECT * FROM `".$pixelpost_db_prefix."config`");
    $cfgrow = mysql_fetch_array($cfgquery,MYSQL_ASSOC);
    
    // credit to codewalkers.com - there is 90% a tutorial there
    $max_width  = $cfgrow['thumbwidth'];
    $max_height = $cfgrow['thumbheight'];
    
    $tmp_img = imagecreatetruecolor($max_width,$max_height);
    
    define('IMAGE_BASE', rtrim($cfgrow['imagepath'],"/"));
    $image_path = IMAGE_BASE."/".$file;
    $img = null;
    $ext_exp = explode('.', $image_path);
    $ext_end = end($ext_exp);
    $ext     = strtolower($ext_end);
    
    if ($ext == 'jpg' || $ext == 'jpeg')
    {
        $img = @imagecreatefromjpeg($image_path);
    }
    elseif($ext == 'png')
    {
        $img = @imagecreatefrompng($image_path);
    }
    elseif($ext == 'gif')
    {
        $img = @imagecreatefromgif($image_path);
    }
    
    if($img)
    {
        $width = imagesx($img);
        $height = imagesy($img);

        // gd 2.0.1 or later: imagecopyresampled
        // gd less than 2.0: imagecopyresized
        if(function_exists('imagecopyresampled'))
        {
            imagecopyresampled($tmp_img, $img, 0,0,$w,$h,$max_width,$max_height,$dw,$dh);
        }
        else
        {
            imagecopyresized($tmp_img, $img, 0,0,$w,$h,$max_width ,$max_height,$dw,$dh);
        }
        
        imagedestroy($img);
        
        // now save the thumbnail
        touch($cfgrow['thumbnailpath']."thumb_$file");
        imagejpeg($tmp_img, $cfgrow['thumbnailpath']."thumb_$file",$cfgrow['compression']);
        $thumbimage = $cfgrow['thumbnailpath']."thumb_$file";
        chmod($thumbimage,0644);
        imagedestroy($tmp_img);
        return true;
	}// if $img
    
    // if you are here, something's wrong
    return false;
}

?>