使用phpgd，使用良好，一键剪裁各种尺寸，打包下载。经常换icon的懂的，美术给你一个1024的logo，你得ps出各种尺寸，于是有了这个东西。 展示地址：http://www.atool.org/ios_logo.php 核心代码如下 atooltip ?php//http://www.codepearl.comclass image {/**
使用php gd，使用良好，一键剪裁各种尺寸，打包下载。经常换icon的懂的，美术给你一个1024的logo，你得ps出各种尺寸，于是有了这个东西。
展示地址：http://www.atool.org/ios_logo.php
核心代码如下 atooltip source($source); } } /** * set the source image * * @param string|array $source */ public function source($source) { if(!is_array($source)) { $this->source[name] = $source; $this->source[tmp_name] = $source; $type = null; $ext = strtolower(end(explode(.,$source))); switch($ext) { case jpg : case jpeg : $type = image/jpeg; break; case gif : $type = image/gif; break; case png : $type = image/png; break; } $this->source[type] = $type; } else { $this->source = $source; } $this->destination = $this->source[name]; } /** * resize the image * * @param int $width * @param int $height */ public function resize($width = null,$height = null) { if(isset($this->source[tmp_name]) && file_exists($this->source[tmp_name])) { list($source_width,$source_height) = getimagesize($this->source[tmp_name]); if(($width == null) && ($height != null)) { $width = ($source_width * $height) / $source_height; } if(($width != null) && ($height == null)) { $height = ($source_height * $width) / $source_width; } if(($width == null) && ($height == null)) { $width = $source_width; $height = $source_height; } switch($this->source[type]) { case image/jpeg : $created = imagecreatefromjpeg($this->source[tmp_name]); break; case image/gif : $created = imagecreatefromgif($this->source[tmp_name]); break; case image/png : $created = imagecreatefrompng($this->source[tmp_name]); break; } $this->image = imagecreatetruecolor($width,$height); imagecopyresampled($this->image,$created,0,0,0,0,$width,$height,$source_width,$source_height); } } /** * add watermark on image * * @param string $mark * @param int $opac * @param int $x_pos * @param int $y_pos */ public function watermark($mark,$opac,$x_pos,$y_pos) { if(file_exists($mark) && ($this->image != )) { $ext = strtolower(end(explode(.,$mark))); switch($ext) { case jpg : case jpeg : $watermark = imagecreatefromjpeg($mark); break; case gif : $watermark = imagecreatefromgif($mark); break; case png : $watermark = imagecreatefrompng($mark); break; } list($watermark_width,$watermark_height) = getimagesize($mark); $source_width = imagesx($this->image); $source_height = imagesy($this->image); if($x_pos == top) $pos = t; else $pos = b; if($y_pos == left) $pos .= l; else $pos .= r; $dest_x = 0; $dest_y = 0; switch($pos) { case tr : $dest_x = $source_width - $watermark_width; break; case bl : $dest_y = $source_height - $watermark_height; break; case br : $dest_x = $source_width - $watermark_width; $dest_y = $source_height - $watermark_height; break; } imagecopymerge($this->image,$watermark,$dest_x,$dest_y,0,0,$watermark_width,$watermark_height,$opac); } } /** * crop the image * * @param int $x * @param int $y * @param int $width * @param int $height */ public function crop($x,$y,$width,$height) { if(isset($this->source[tmp_name]) && file_exists($this->source[tmp_name]) && ($width > 10) && ($height > 10)) { switch($this->source[type]) { case image/jpeg : $created = imagecreatefromjpeg($this->source[tmp_name]); break; case image/gif : $created = imagecreatefromgif($this->source[tmp_name]); break; case image/png : $created = imagecreatefrompng($this->source[tmp_name]); break; } $this->image = imagecreatetruecolor($width,$height); imagecopy($this->image,$created,0,0,$x,$y,$width,$height); } } /** * create final image file * * @param string $destination * @param int $quality */ public function create($destination,$quality = 100) { if($this->image != ) { $extension = substr($destination,-3,3); switch($extension) { case gif : imagegif($this->image,$destination,$quality); break; case png : $quality = ceil($quality/10) - 1; imagepng($this->image,$destination,$quality); break; default : imagejpeg($this->image,$destination,$quality); break; } } } /** * check if extension is valid * */ public function validate_extension() { if(isset($this->source[tmp_name]) && file_exists($this->source[tmp_name])) { $exts = array(image/jpeg, image/pjpeg, image/png, image/x-png); $ext = $this->source[type]; $valid = 0; $this->ext = '.not_found'; if ($ext == $exts[0] || $ext == $exts[1]) { $valid = 1; $this->ext = '.jpg'; } // if ($ext == $exts[2]) { // $valid = 1; // $this->ext = '.gif'; // } if ($ext == $exts[2] || $ext == $exts[3]) { $valid = 1; $this->ext = '.png'; } if($valid != 1) { $this->error .= extension; } } else { $this->error .= source; } } /** * check if the size is correct * * @param int $max */ public function validate_size($max) { if(isset($this->source[tmp_name]) && file_exists($this->source[tmp_name])) { $max = $max * 1024; if($this->source[size] >= $max) { $this->error .= size; } } else { $this->error .= source; } } /** * check if the dimension is correct * * @param int $limit_width * @param int $limit_height */ public function validate_dimension($limit_width,$limit_height) { if(isset($this->source[tmp_name]) && file_exists($this->source[tmp_name])) { list($source_width,$source_height) = getimagesize($this->source[tmp_name]); if(($source_width > $limit_width) || ($source_height > $limit_height)) { $this->error .= dimension; } } else { $this->error .= source; } } /** * get the found errors * */ public function error() { $error = array(); if(stristr($this->error,source)) $error[] = 找不到上传文件; if(stristr($this->error,dimension)) $error[] = 上传图片尺寸太大; if(stristr($this->error,extension)) $error[] = 不符合要求的格式; if(stristr($this->error,size)) $error[] = 图片文件太大; return $error; } public function error_string() { $error = ; if(stristr($this->error,source)) $error .= 找不到上传文件 / ; if(stristr($this->error,dimension)) $error .= 上传图片尺寸太大 / ; if(stristr($this->error,extension)) $error .= 不符合要求的格式 / ; if(stristr($this->error,size)) $error .= 图片文件太大 / ; if(eregi( / $, $error)) { $error = substr($error, 0, -3); } return $error; } public function ext() { return $this->ext; }}