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<?php
/**
* 处理图片类
* 1.添加文字水印
* 2.添加图片水印
* 3.压缩图片
*/
class TL_Image{
private $image;//内存中的图片
private $info;//图片的基本信息
/**
* 打开一张图片,读取到内存
* @param [type] $src [description] 图片路径
*/
public function __construct($src){
$info = getimagesize($src);
$this->info = array(
'width' => $info[0],
'height' => $info[1],
'type' => image_type_to_extension($info['2'],false),
'mime' => $info['mime'],
);
$fun = "imagecreatefrom{$this->info['type']}";
$this->image = $fun($src);
}
/**
* 操作图片(压缩)
* @param [type] $width [description] 宽
* @param [type] $height [description] 高
* @return [type] [description]
*/
public function thumb($width,$height){
$image_thumb = imagecreatetruecolor($width,$height);
imagecopyresampled($image_thumb, $this->image, 0, 0, 0, 0, $width, $height, $this->info['width'], $this->info['height']);
imagedestroy($this->image);
$this->image = $image_thumb;
}
/**
* 操作图片(添加文字水印)
* [fontMark description]
* @param [type] $content [description] 设置文字
* @param [type] $font_url [description] 字体文件路径
* @param [type] $size [description] 字体大小
* @param [type] $color [description] 字体颜色 []
* @param [type] $local [description] 位置 []
* @param [type] $angle [description] 旋转
* @return [type] [description]
*/
public function fontMark($content,$font_url,$size,$color,$local,$angle){
$col = imagecolorallocatealpha($this->image,$color[0],$color[1],$color[2],$color[3]);
imagettftext($this->image, $size, $angle, $local['x'], $local['y'], $col, $font_url, $content);
}
/**
* 操作图片(添加图片水印)
* @param [type] $source [description] 水印图片路径
* @param [type] $local [description] 位置 []
* @param [type] $alpha [description] 透明
* @return [type] [description]
*/
public function imageMark($source,$local,$alpha){
$info2 = getimagesize($source);
$type2 = image_type_to_extension($info2[2],false);
$fun2 = "imagecreatefrom{$type2}";
$water = $fun2($source);
imagecopymerge($this->image, $water, $local['x'], $local['y'], 0, 0, $info2[0], $info2[1], $alpha);
imagedestroy($water);
}
/**
* 浏览器输出图片
*/
public function show(){
header("Content-Type:" . $this->info['mime']);
$funs = "image{$this->info['type']}";
$funs($this->image);
}
/**
* 保存图片
* @param [type] $newname [description] 保存之后的名字
* @return [type] [description]
*/
public function save($srcs){
$funs = "image{$this->info['type']}";
$funs($this->image,$srcs);
//move_uploaded_file($this->image, $srcs);
}
/**
* 销毁图片
*/
public function __destruct(){
imagedestroy($this->image);
}
}
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