Subversion Repositories Sites.tela-botanica.org

Rev

Rev 415 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 415 Rev 434
Line 1... Line 1...
1 
<?php
 1 
<?php
2
- 
 
- 
 
 2 
// Vérification de la présence d'un chemin vers l'image
3 
if($_GET['img'] == "")
 3 
if($_GET['img'] == '') {
4 
exit;
 4 
	exit;
- 
 
 5 
}
5
6 
 
- 
 
 7 
// Récupération de paramêtres
6 
$_image_ = urldecode( $_GET['img'] );
 8 
$_image_ = urldecode( $_GET['img'] );
7 
 
 - 
 
- 
 
 9 
$_dossier = dirname($_image_).'/cache/';
- 
 
 10 
$_fichier = pathinfo($_image_);
- 
 
 11 
$_fichier['filename'] = trim(basename($_image_, $_fichier['extension']), '.');
8 
$_width_min_ = intval($_GET['width']);
 12 
$_width_min_ = intval($_GET['width']);
9 
$_height_min_ = intval($_GET['height']);
 13 
$_height_min_ = intval($_GET['height']);
10 
$_quality_ = intval($_GET['quality']);
 14 
$_quality_ = intval($_GET['quality']);
- 
 
 15 
$_centrage = false;
- 
 
 16 
if (isset($_GET['centrage'])) {
- 
 
 17 
	$_centrage = (bool)$_GET['centrage'];
- 
 
 18 
}
11 
 
 19 
 
- 
 
 20 
// Création du dossier de cache
12 
$new_w = $_width_min_;
 21 
if (!is_dir($_dossier)) {
13 
$imagedata = getimagesize($_image_);
 22 
	mkdir($_dossier);
14 
 
 23 
}
- 
 
 24 
// Création du nom du fichier de cache
- 
 
 25 
$fichier_cache = $_dossier.$_fichier['filename'].'_w'.$_width_min_.'_q'.$_quality_.'.'.$_fichier['extension'];
- 
 
 26 
// Recherche de la présence d'une image en cache ou création de celle-ci
- 
 
 27 
if (file_exists($fichier_cache)) {
- 
 
 28 
	switch (strtolower($_fichier['extension'])) {
- 
 
 29 
		case 'jpg' :
- 
 
 30 
			header('Content-type: image/jpg');
- 
 
 31 
			Imagejpeg(ImageCreateFromJpeg($fichier_cache));
- 
 
 32 
			break;
- 
 
 33 
		case 'gif' :
- 
 
 34 
			header('Content-type: image/gif');
- 
 
 35 
			Imagegif(ImageCreateFromGif($fichier_cache));
- 
 
 36 
			break;
- 
 
 37 
		case 'png' :
- 
 
 38 
			header('Content-type: image/png');
- 
 
 39 
			Imagepng(ImageCreateFromPng($fichier_cache));
- 
 
 40 
			break;
- 
 
 41 
	}
- 
 
 42 
} else {
- 
 
 43 
	// Calcul de la hauteur et de la largeur
- 
 
 44 
	$info = getimagesize($_image_);
15 
if(!$imagedata[0])
 45 
	if ($info[0] == '') {
16 
exit();
 46 
		exit();
17 
 
 47 
	}
- 
 
 48 
	$new_w = $_width_min_;
18 
$new_h = (int)($imagedata[1]*($new_w/$imagedata[0]));
 49 
	$new_h = (int)($info[1]*($new_w/$info[0]));
19 
 
 - 
 
20 
if(($_height_min_) AND ($new_h > $_height_min_)) {
 50 
	if(($_height_min_) AND ($new_h > $_height_min_)) {
21 
	$new_h = $_height_min_;
 51 
		$new_h = $_height_min_;
22 
	$new_w = (int)($imagedata[0]*($new_h/$imagedata[1]));
 52 
		$new_w = (int)($info[0]*($new_h/$info[1]));
- 
 
 53 
	}
- 
 
 54
- 
 
 55 
	// Définition des points d'origine de destination
- 
 
 56 
	$dst_x = 0;
- 
 
 57 
	$dst_y = 0;
- 
 
 58 
	$dst_l = $new_w;
- 
 
 59 
	$dst_h = $new_h;
- 
 
 60 
	if ($_centrage != false) {
- 
 
 61 
		$dst_x = (int)(($_width_min_ - $new_w) / 2);
- 
 
 62 
		$dst_y = (int)(($_height_min_ - $new_h) / 2);
- 
 
 63 
		$dst_l = $_width_min_;
- 
 
 64 
		$dst_h = $_height_min_;
23 
}
 65 
	}
24 
 
 66
- 
 
 67 
	// Création de l'image
25 
if(strtolower(substr($_image_,-3)) == "jpg") {
 68 
	switch (strtolower($_fichier['extension'])) {
- 
 
 69 
		case 'jpg' :
26 
  header("Content-type: image/jpg");
 70 
			header("Content-type: image/jpg");
27 
  $dst_img=ImageCreate($new_w,$new_h);
 71 
			$dst_img = imagecreatetruecolor($dst_l, $dst_h);
28 
  $src_img=ImageCreateFromJpeg($_image_);
 72 
			$c_fond = imagecolorallocate($dst_img, 255, 255, 255);
- 
 
 73 
			imagefill($dst_img, 0, 0, $c_fond);
29 
  $dst_img = imagecreatetruecolor($new_w, $new_h);
 74 
			$src_img = ImageCreateFromJpeg($_image_);
30 
  imagecopyresampled($dst_img,$src_img,0,0,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img));
 75 
			imagecopyresampled($dst_img,$src_img,$dst_x,$dst_y,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img));
- 
 
 76 
			$img_cache = Imagejpeg($dst_img, $fichier_cache, $_quality_);
31 
  $img = Imagejpeg($dst_img, '', $_quality_);
 77 
			$img = Imagejpeg($dst_img, '', $_quality_);
32 
}
 78 
			break;
33 
 
 - 
 
34 
if(substr($_GET['img'],-3) == "gif") {
 79 
		case 'gif' :
35 
  header("Content-type: image/gif");
 80 
			header("Content-type: image/gif");
36 
  $dst_img=ImageCreate($new_w,$new_h);
 81 
			$dst_img=ImageCreate($new_w,$new_h);
37 
  $src_img=ImageCreateFromGif($_image_);
82 
			$src_img=ImageCreateFromGif($_image_);
38 
  ImagePaletteCopy($dst_img,$src_img);
 83 
			ImagePaletteCopy($dst_img,$src_img);
39 
  ImageCopyResized($dst_img,$src_img,0,0,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img));
 84 
			ImageCopyResized($dst_img,$src_img,$dst_x,$dst_y,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img));
- 
 
 85 
			$img_cache = Imagegif($dst_img, $fichier_cache, $_quality_);
40 
  $img = Imagegif($dst_img,'', $_quality_);
 86 
			$img = Imagegif($dst_img,'', $_quality_);
41 
}
 87 
			break;
42 
 
 - 
 
43 
if(substr($_GET['img'],-3) == "png") {
 88 
		case 'png' :
44 
  header("Content-type: image/png");
 89 
			header("Content-type: image/png");
45 
  $dst_img=ImageCreate($new_w,$new_h);
 90 
			$dst_img=ImageCreate($new_w,$new_h);
46 
  $src_img=ImageCreateFromPng($_image_);
91 
			$src_img=ImageCreateFromPng($_image_);
47 
  ImagePaletteCopy($dst_img,$src_img);
 92 
			ImagePaletteCopy($dst_img,$src_img);
48 
  ImageCopyResized($dst_img,$src_img,0,0,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img));
 93 
			ImageCopyResized($dst_img,$src_img,$dst_x,$dst_y,0,0,$new_w,$new_h,ImageSX($src_img),ImageSY($src_img));
- 
 
 94 
			$img_cache = Imagepng($dst_img, $fichier_cache, $_quality_);
49 
  $img = Imagepng($dst_img,'', $_quality_);
 95 
			$img = Imagepng($dst_img,'', $_quality_);
- 
 
 96 
			break;
50 
}
 97 
	}
51 
 
 98 
}
52 
?>
 99 
?>
53 

            100