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下面由上代碼

//圖像處理類

class Image {

private $file;//圖片地址

private $width;//圖片長度

private $height;//圖片長度

private $type;//圖片類型

private $img;//原圖的資源句柄

private $new;//新圖的資源句柄

//構(gòu)造方法，初始化

public function __construct($_file) {

$this->file = $_SERVER["DOCUMENT_ROOT"].$_file;

list($this->width, $this->height, $this->type) = getimagesize($this->file);

$this->img = $this->getFromImg($this->file, $this->type);

}

//cke專用圖像處理

public function ckeImg($new_width = 0,$new_height = 0) {

list($_water_width,$_water_height,$_water_type) = getimagesize(MARK);

$_water = $this->getFromImg(MARK,$_water_type);

if (empty($new_width) && empty($new_height)) {

$new_width = $this->width;

$new_height = $this->height;

}

if (!is_numeric($new_width) || !is_numeric($new_height)) {

$new_width = $this->width;

$new_height = $this->height;

}

if ($this->width > $new_width) { //通過指定長度，獲取等比例的高度

$new_height = ($new_width / $this->width) * $this->height;

} else {

$new_width = $this->width;

$new_height = $this->height;

}

if ($this->height > $new_height) { //通過指定高度，獲取等比例長度

$new_width = ($new_height / $this->height) * $this->width;

} else {

$new_width = $this->width;

$new_height = $this->height;

}

$_water_x = $new_width - $_water_width - 5;

$_water_y = $new_height - $_water_height - 5;

$this->new = imagecreatetruecolor($new_width,$new_height);

imagecopyresampled($this->new,$this->img,0,0,0,0,$new_width,$new_height,$this->width,$this->height);

if ($new_width > $_water_width && $new_height > $_water_height) {

imagecopy($this->new,$_water,$_water_x,$_water_y,0,0,$_water_width,$_water_height);

}

imagedestroy($_water);

}

//縮略圖(固定長高容器，圖像等比例，擴(kuò)容填充，裁剪)[固定了大小，不失真，不變形]

public function thumb($new_width = 0,$new_height = 0) {

if (empty($new_width) && empty($new_height)) {

$new_width = $this->width;

$new_height = $this->height;

}

if (!is_numeric($new_width) || !is_numeric($new_height)) {

$new_width = $this->width;

$new_height = $this->height;

}

//創(chuàng)建一個容器

$_n_w = $new_width;

$_n_h = $new_height;

//創(chuàng)建裁剪點(diǎn)

$_cut_width = 0;

$_cut_height = 0;

if ($this->width < $this->height) {

$new_width = ($new_height / $this->height) * $this->width;

} else {

$new_height = ($new_width / $this->width) * $this->height;

}

if ($new_width < $_n_w) { //如果新高度小于新容器高度

$r = $_n_w / $new_width; //按長度求出等比例因子

$new_width *= $r; //擴(kuò)展填充后的長度

$new_height *= $r; //擴(kuò)展填充后的高度

$_cut_height = ($new_height - $_n_h) / 2; //求出裁剪點(diǎn)的高度

}

if ($new_height < $_n_h) { //如果新高度小于容器高度

$r = $_n_h / $new_height; //按高度求出等比例因子

$new_width *= $r; //擴(kuò)展填充后的長度

$new_height *= $r; //擴(kuò)展填充后的高度

$_cut_width = ($new_width - $_n_w) / 2; //求出裁剪點(diǎn)的長度

}

$this->new = imagecreatetruecolor($_n_w,$_n_h);

imagecopyresampled($this->new,$this->img,0,0,$_cut_width,$_cut_height,$new_width,$new_height,$this->width,$this->height);

}

//加載圖片，各種類型，返回圖片的資源句柄

private function getFromImg($_file, $_type) {

switch ($_type) {

case 1 :

$img = imagecreatefromgif($_file);

break;

case 2 :

$img = imagecreatefromjpeg($_file);

break;

case 3 :

$img = imagecreatefrompng($_file);

break;

default:

Tool::alertBack('警告：此圖片類型本系統(tǒng)不支持！');

}

return $img;

}

//圖像輸出

public function out() {

imagepng($this->new,$this->file);

imagedestroy($this->img);

imagedestroy($this->new);

}

}

?>

CK專用是專門處理CK編輯器所傳圖片? 如有不需要的同學(xué)請刪除

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