PCTuning fórum

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<img src=...>

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<?php echo "<img src=\"generuj_nahled.php?soubor=123456.jpg\">\n"; ?>

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<?php
header("Content-type:image/jpeg");

$orig_path = "photos"; // adr s obrazky
$thumb_width = 120; // max sirka nahledu

if(is_file("".$orig_path."/".$_GET['file']."")){

  $orig_img = "".$orig_path."/".$_GET['file']."";
  $orig_dimensions = getimagesize($orig_img); 
  $height = ($thumb_width / $orig_dimensions[0]) * $orig_dimensions[1];
  $new_img = imagecreatetruecolor($thumb_width, $height);
  
  $f_type = strtolower(substr($_GET['file'], -4));
  
  if($f_type == '.jpg'){
    $img = imagecreatefromjpeg($orig_img);   
  }elseif($f_type == '.gif'){
    $img = imagecreatefromgif($orig_img);
  }elseif($f_type == '.png'){
    $img = imagecreatefrompng($orig_img);
  }
  
  imagecopyresampled($new_img, $img, 0, 0, 0, 0, $thumb_width + 1, $height + 1, $orig_dimensions[0], $orig_dimensions[1]); 
  
  imagejpeg($new_img, "", 100);
  imagedestroy($new_img);

}else{  

  $new_img = imagecreatetruecolor(90, 90);
  imagejpeg($new_img, "", 10);
  imagedestroy($new_img);

}
?>

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imagejpeg($new_img, "", 100);

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<?php include "generator.php"; ?>

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<?php ShowImage("obrazek.jpg"); ?>

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<?php 

function ShowImage($file) {

$orig_path = "photos"; // adresar s obrazky
$thumb_path = "thumb"; // adresar s nahledy
$thumb_height = 200; // max vyska nahledu
$quality = 100; // nastaveni kvality jpeg souboru (0-100) 

$orig_img = "".$orig_path."/".$file."";
$thumb_img = "".$thumb_path."/".$file."";  

if(is_file($orig_img)) { //existuje vubec soubor?

  $orig_dimensions = getimagesize($orig_img); 

  if(is_file($thumb_img)) {  //nemame uz nahled hotovy?
    echo "<img src=\"".$thumb_img."\" alt=\"\">\n";
  }
  else {  //kdyz ne tak si ho vytvorime
  
    $expl = explode(".",$file); //rozdelime si nazev a priponu
    $ext = $expl[1]; //vezmeme si priponu
    switch ($ext) {  //podle pripony pouzijeme funkci
      case "jpg":
      case "jpeg":
        $big = imagecreatefromjpeg($orig_img); break;
      case "png":
        $big = imagecreatefrompng($orig_img); break;
      case "gif":
        $big = imagecreatefromgif($orig_img); break;
    }
    
    $bw = imagesx($big);
    $bh = imagesy($big);
    $ratio = $bw / $bh;  //spocitame si pomer stran
    
    $sw = $thumb_height * $ratio; //zjistime sirku maleho obrazku
    $sh = $thumb_height;
      
    $small = imagecreatetruecolor($sw,$sh);  //vytvorime si truecolor sablonu
    imagecopyresampled($small,$big,0,0,0,0,$sw,$sh,$bw,$bh);  //zmensime obrazek
    imagejpeg($small,$thumb_img,$quality);  //ulozime obrazek
      
    ImageDestroy($small);  //uvolnime misto v pameti
    ImageDestroy($big);
    
    echo "<img src=\"".$thumb_img."\" alt=\"\">\n";
  }
}

else {  
  echo "Nenalezeno!\n";
} 
}
?>

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// licence: GNU/GPL v2
// copyright: (c) 2004-2006 Lucas Lommer

function gdImagePreview ($imgSource, $sizeX, $sizeY, $imgDest) {
	// Existuje uz nahled?
	if (!File_Exists($imgDest)) {

				// Nactu si nejen rozmery puvodniho obrazku, ale i jeho typ, lepsi nez dle pripony
				$curSize = getimagesize ($imgSource);

				// Prizpusobeni rozmeru
				if (($sizeX/$sizeY) > ($curSize[0]/$curSize[1])) $sizeX = ($curSize[0]/($curSize[1]/$sizeY));
				if (($sizeX/$sizeY) < ($curSize[0]/$curSize[1])) $sizeY = ($curSize[1]/($curSize[0]/$sizeX));	
				$newSize[0] = round($sizeX);
				$newSize[1] = round($sizeY);

				// Vytvorit objekt
				$newImage = ImageCreateTrueColor($newSize[0],$newSize[1]);

				// Je-li obrazek GIF
				if ($curSize[2] == 1) {
						$oldImage = imagecreatefromgif($imgSource);
						imagecopyresized($newImage, $oldImage, 0, 0, 0, 0, $newSize[0], $newSize[1], $curSize[0], $curSize[1]);
						imagegif($newImage, $imgDest);	
						}
				// Je-li obrazek JPEG
				if ($curSize[2] == 2) {
						$oldImage = imagecreatefromjpeg($imgSource);
						imagecopyresized($newImage, $oldImage, 0, 0, 0, 0, $newSize[0], $newSize[1], $curSize[0], $curSize[1]);
						imagejpeg($newImage, $imgDest);
						}
				// Je-li obrazek PNG
				if ($curSize[2] == 3) {
						$oldImage = imagecreatefrompng($imgSource);
						imagecopyresized($newImage, $oldImage, 0, 0, 0, 0, $newSize[0], $newSize[1], $curSize[0], $curSize[1]);
						imagepng($newImage, $imgDest);	
						}
				// Je-li obrazek wBMP
				if ($curSize[2] == 15) {
						$oldImage = imagecreatefromwbmp($imgSource);
						imagecopyresized($newImage, $oldImage, 0, 0, 0, 0, $newSize[0], $newSize[1], $curSize[0], $curSize[1]);
						imagewbmp($newImage, $imgDest);	
						}
				// Je-li obrazek xbm
				if ($curSize[2] == 16) {
						$oldImage = imagecreatefromxbm($imgSource);
						imagecopyresized($newImage, $oldImage, 0, 0, 0, 0, $newSize[0], $newSize[0], $curSize[0], $curSize[1]);
						imagexbm($newImage, $imgDest);	
						}

				// Vyprazdnit pamet
				ImageDestroy($oldImage);
				ImageDestroy($newImage);
				}
	return $imgDest;
	}
// No snad jsem nic nezapomel