Código PHP:
<?php
function resizeThumbnailImage($thumb_image_name, $image, $width, $height, $start_width, $start_height, $scale){
list($imagewidth, $imageheight, $imageType) = getimagesize($image);
$imageType = image_type_to_mime_type($imageType);
$newImageWidth = ceil($width * $scale);
$newImageHeight = ceil($height * $scale);
$newImage = imagecreatetruecolor($newImageWidth,$newImageHeight);
switch($imageType) {
case "image/gif":
$source=imagecreatefromgif($image);
break;
case "image/pjpeg":
case "image/jpeg":
case "image/jpg":
$source=imagecreatefromjpeg($image);
break;
case "image/png":
case "image/x-png":
$source=imagecreatefrompng($image);
break;
}
imagecopyresampled($newImage,$source,0,0,$start_width,$start_height,$newImageWidth,$newImageHeight,$width,$height);
switch($imageType) {
case "image/gif":
imagegif($newImage,$thumb_image_name);
break;
case "image/pjpeg":
case "image/jpeg":
case "image/jpg":
imagejpeg($newImage,$thumb_image_name,90);
break;
case "image/png":
case "image/x-png":
imagepng($newImage,$thumb_image_name);
break;
}
chmod($thumb_image_name, 0777);
return $thumb_image_name;
}
function getHeight($image) {
$size = getimagesize($image);
$height = $size[1];
return $height;
}
function getWidth($image) {
$size = getimagesize($image);
$width = $size[0];
return $width;
}
$large_image_location = $upload_path.$large_image_name.$_SESSION['user_file_ext'];
$thumb_image_location = $upload_path.$thumb_image_name.$_SESSION['user_file_ext'];
if(!is_dir($upload_dir)){
mkdir($upload_dir, 0777);
chmod($upload_dir, 0777);
}
if (file_exists($large_image_location)){
if(file_exists($thumb_image_location)){
$thumb_photo_exists = "<img src=\"".$upload_path.$thumb_image_name.$_SESSION['user_file_ext']."\" alt=\"Thumbnail Image\"/>";
}else{
$thumb_photo_exists = "";
}
$large_photo_exists = "<img src=\"".$upload_path.$large_image_name.$_SESSION['user_file_ext']."\" alt=\"Large Image\"/>";
} else {
$large_photo_exists = "";
$thumb_photo_exists = "";
}
if (isset($_POST["upload"])) {
$userfile_name = $_FILES['image']['name'];
$userfile_tmp = $_FILES['image']['tmp_name'];
$userfile_size = $_FILES['image']['size'];
$userfile_type = $_FILES['image']['type'];
$filename = basename($_FILES['image']['name']);
$file_ext = strtolower(substr($filename, strrpos($filename, '.') + 1));
if((!empty($_FILES["image"])) && ($_FILES['image']['error'] == 0)) {
foreach ($allowed_image_types as $mime_type => $ext) {
if($file_ext==$ext && $userfile_type==$mime_type){
$error = "";
break;
}else{
$error = "Solo <strong>".$image_ext."</strong> imagenes son aceptadas<br />";
}
}
if ($userfile_size > ($max_file*1048576)) {
$error.= "Las imagenes deben pesar menos de ".$max_file."MB";
}
}else{
$error= "Elige una imagen para subir";
}
if (strlen($error)==0){
if (isset($_FILES['image']['name'])){
$large_image_location = $large_image_location.".".$file_ext;
$thumb_image_location = $thumb_image_location.".".$file_ext;
$_SESSION['user_file_ext']=".".$file_ext;
move_uploaded_file($userfile_tmp, $large_image_location);
chmod($large_image_location, 0777);
$width = getWidth($large_image_location);
$height = getHeight($large_image_location);
if ($width > $height){
if ($width > $max_width){
$scale = $max_width/$width;
$uploaded = resizeImage($large_image_location,$width,$height,$scale);
}else{
$scale = 1;
$uploaded = resizeImage($large_image_location,$width,$height,$scale);
}
}else{
if ($height > $max_height){
$scale = $max_height/$height;
$uploaded = resizeImage($large_image_location,$width,$height,$scale);
}else{
$scale = 1;
$uploaded = resizeImage($large_image_location,$width,$height,$scale);
}
}
if (file_exists($thumb_image_location)) {
unlink($thumb_image_location);
}
}
header("location:".$_SERVER["PHP_SELF"]);
exit();
}
}
if (isset($_POST["upload_thumbnail"]) && strlen($large_photo_exists)>0) {
$x1 = $_POST["x1"];
$y1 = $_POST["y1"];
$x2 = $_POST["x2"];
$y2 = $_POST["y2"];
$w = $_POST["w"];
$h = $_POST["h"];
$scale = $thumb_width/$w;
$cropped = resizeThumbnailImage($thumb_image_location, $large_image_location,$w,$h,$x1,$y1,$scale);
header("location:".$_SERVER["PHP_SELF"]);
exit();
}
if ($_GET['a']=="delete" && strlen($_GET['t'])>0){
$large_image_location = $upload_path.$large_image_prefix.$_GET['t'];
$thumb_image_location = $upload_path.$thumb_image_prefix.$_GET['t'];
if (file_exists($large_image_location)) {
unlink($large_image_location);
}
if (file_exists($thumb_image_location)) {
unlink($thumb_image_location);
}
header("location:".$_SERVER["PHP_SELF"]);
exit();
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="js/jquery-1.4.3.min.js"></script>
<script type="text/javascript" src="js/jquery.imgareaselect.min.js"></script>
<?php
// Configura la información de tu cuenta
$dbhost='';
$dbusername='';
$dbuserpass='';
$dbname='';
// Conexión a la base de datos
mysql_connect ($dbhost, $dbusername, $dbuserpass);
mysql_select_db($dbname) or die('No se puede selecionar la base de datos');
?>
<title>Subir Imagenes</title>
</head>
<body>
<?php
//solo mostrar si la imagen ha sido subida
if(strlen($large_photo_exists)>0){
$current_large_image_width = getWidth($large_image_location);
$current_large_image_height = getHeight($large_image_location);?>
<script type="text/javascript">
function preview(img, selection) {
var scaleX = <?php echo $thumb_width;?> / selection.width;
var scaleY = <?php echo $thumb_height;?> / selection.height;
$('#thumbnail + div > img').css({
width: Math.round(scaleX * <?php echo $current_large_image_width;?>) + 'px',
height: Math.round(scaleY * <?php echo $current_large_image_height;?>) + 'px',
marginLeft: '-' + Math.round(scaleX * selection.x1) + 'px',
marginTop: '-' + Math.round(scaleY * selection.y1) + 'px'
});
$('#x1').val(selection.x1);
$('#y1').val(selection.y1);
$('#x2').val(selection.x2);
$('#y2').val(selection.y2);
$('#w').val(selection.width);
$('#h').val(selection.height);
}
$(document).ready(function () {
$('#save_thumb').click(function() {
var x1 = $('#x1').val();
var y1 = $('#y1').val();
var x2 = $('#x2').val();
var y2 = $('#y2').val();
var w = $('#w').val();
var h = $('#h').val();
if(x1=="" || y1=="" || x2=="" || y2=="" || w=="" || h==""){
alert("Debes de seleccionar primero");
return false;
}else{
return true;
}
});
});
$(window).load(function () {
$('#thumbnail').imgAreaSelect({ aspectRatio: '1:<?php echo $thumb_height/$thumb_width;?>', onSelectChange: preview });
});
</script>
<?php }?>
<?php
//mostrar error si hay
if(strlen($error)>0){
echo "<ul><li><strong>Error!</strong></li><li>".$error."</li></ul>";
}
if(strlen($large_photo_exists)>0 && strlen($thumb_photo_exists)>0){
echo $large_photo_exists." ".$thumb_photo_exists;
echo "<form action='registrar_foto.php' method='post'>"
."<table border='0'>"
."<tr>"
."<td>Titulo: </td>"
."<td><input name='titulo' type='text' maxlength='25' /></td>"
."</tr>"
."<tr>"
."<td>Descripcion: </td>"
."<td><input name='descripcion' type='text' maxlength='400' /></td>"
."</tr>"
."<tr>"
."<td></td>"
."<td><input name='Registrar' type='submit' value='Registrar'/></td>"
."</tr>"
."</table>"
."</form>";
}else{
if(strlen($large_photo_exists)>0){?>
<h2>Crear Thumbnail</h2>
<div align="center">
<img src="<?php echo $upload_path.$large_image_name.$_SESSION['user_file_ext'];?>" style="float: left; margin-right: 10px;" id="thumbnail" alt="Create Thumbnail" />
<div style="border:1px #e5e5e5 solid; float:left; position:relative; overflow:hidden; width:<?php echo $thumb_width;?>px; height:<?php echo $thumb_height;?>px;">
<img src="<?php echo $upload_path.$large_image_name.$_SESSION['user_file_ext'];?>" style="position: relative;" alt="Thumbnail Preview" />
</div>
<br style="clear:both;"/>
<form name="thumbnail" action="<?php echo $_SERVER["PHP_SELF"];?>" method="post">
<input type="hidden" name="x1" value="" id="x1" />
<input type="hidden" name="y1" value="" id="y1" />
<input type="hidden" name="x2" value="" id="x2" />
<input type="hidden" name="y2" value="" id="y2" />
<input type="hidden" name="w" value="" id="w" />
<input type="hidden" name="h" value="" id="h" />
<input type="submit" name="upload_thumbnail" value="Save Thumbnail" id="save_thumb" />
</form>
</div>
<hr />
<?php }else{ ?>
<h2>Subir Foto</h2>
<form name="photo" enctype="multipart/form-data" action="<?php echo $_SERVER["PHP_SELF"];?>" method="post">
Foto <input type="file" name="image" size="30" /> <input type="submit" name="upload" value="Upload" />
</form>
<?php }} ?>
</body>
</html>
