📄 gdimage.inc.php
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<?php
//====================================================
// FileName:GDImage.inc.php
// Summary: 图片处理程序
// Author: ice_berg16(寻梦的稻草人)
// CreateTime: 2004-10-12
// LastModifed:2004-10-31
// copyright (c)2004 ice_berg16@163.com
//====================================================
class GDImage
{
var $sourcePath; //图片存储路径
var $galleryPath; //图片缩略图存储路径
var $displayPath; //显示图片时使用的路径
var $toFile = false; //是否生成文件
var $fontName; //使用的TTF字体名称
var $maxWidth = 500; //图片最大宽度
var $maxHeight = 600; //图片最大高度
var $useTimeAsFileName = true; //是否使用时间做为上传后的文件名
//==========================================
// 函数: GDImage($sourcePath ,$galleryPath, $displayPath)
// 功能: constructor
// 参数: $sourcePath 图片源路径(包括最后一个"/")
// 参数: $galleryPath 生成图片的路径
// 参数: $displayPath 显示图片时使用的路径
//==========================================
function GDImage($sourcePath, $galleryPath, $displayPath)
{
$this->sourcePath = $sourcePath;
$this->galleryPath = $galleryPath;
$this->displayPath = $displayPath;
$this->fontName = $galleryPath . "04B_08__.TTF";
}
//==========================================
// 函数: makeThumb($sourFile,$width=128,$height=128)
// 功能: 生成缩略图(输出到浏览器)
// 参数: $sourFile 图片源文件
// 参数: $width 生成缩略图的宽度
// 参数: $height 生成缩略图的高度
// 返回: 0 失败 成功时返回生成的图片路径
//==========================================
function makeThumb($sourFile,$width=128,$height=128)
{
$sourFile = $this->sourcePath . $sourFile;
$imageInfo = $this->getInfo($sourFile);
$newName = substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . "_thumb.jpg";
switch ($imageInfo["type"])
{
case 1: //gif
$img = imagecreatefromgif($sourFile);
break;
case 2: //jpg
$img = imagecreatefromjpeg($sourFile);
break;
case 3: //png
$img = imagecreatefrompng($sourFile);
break;
default:
return 0;
break;
}
if (!$img)
return 0;
$width = ($width > $imageInfo["width"]) ? $imageInfo["width"] : $width;
$height = ($height > $imageInfo["height"]) ? $imageInfo["height"] : $height;
$srcW = $imageInfo["width"];
$srcH = $imageInfo["height"];
if ($srcW * $width > $srcH * $height)
$height = round($srcH * $width / $srcW);
else
$width = round($srcW * $height / $srcH);
//*
if (function_exists("imagecreatetruecolor")) //GD2.0.1
{
$new = imagecreatetruecolor($width, $height);
ImageCopyResampled($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
}
else
{
$new = imagecreate($width, $height);
ImageCopyResized($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
}
//*/
if ($this->toFile)
{
if (file_exists($this->galleryPath . $newName))
unlink($this->galleryPath . $newName);
ImageJPEG($new, $this->galleryPath . $newName);
ImageDestroy($new);
ImageDestroy($img);
return $this->galleryPath . $newName;
}
else
{
ImageJPEG($new);
ImageDestroy($new);
ImageDestroy($img);
}
}
//==========================================
// 函数: waterMark($sourFile, $text)
// 功能: 给图片加水印
// 参数: $sourFile 图片文件名
// 参数: $text 文本数组(包含二个字符串)
// 返回: 1 成功 成功时返回生成的图片路径
//==========================================
function waterMark($sourFile, $text)
{
$sourFile = $this->sourcePath . $sourFile;
$imageInfo = $this->getInfo($sourFile);
$newName = substr($imageInfo["name"], 0, strrpos($imageInfo["name"], ".")) . "_mark.jpg";
switch ($imageInfo["type"])
{
case 1: //gif
$img = imagecreatefromgif($sourFile);
break;
case 2: //jpg
$img = imagecreatefromjpeg($sourFile);
break;
case 3: //png
$img = imagecreatefrompng($sourFile);
break;
default:
return 0;
break;
}
if (!$img)
return 0;
$width = ($this->maxWidth > $imageInfo["width"]) ? $imageInfo["width"] : $this->maxWidth;
$height = ($this->maxHeight > $imageInfo["height"]) ? $imageInfo["height"] : $this->maxHeight;
$srcW = $imageInfo["width"];
$srcH = $imageInfo["height"];
if ($srcW * $width > $srcH * $height)
$height = round($srcH * $width / $srcW);
else
$width = round($srcW * $height / $srcH);
//*
if (function_exists("imagecreatetruecolor")) //GD2.0.1
{
$new = imagecreatetruecolor($width, $height);
ImageCopyResampled($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
}
else
{
$new = imagecreate($width, $height);
ImageCopyResized($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
}
$white = imageColorAllocate($new, 255, 255, 255);
$black = imageColorAllocate($new, 0, 0, 0);
$alpha = imageColorAllocateAlpha($new, 230, 230, 230, 40);
//$rectW = max(strlen($text[0]),strlen($text[1]))*7;
ImageFilledRectangle($new, 0, $height-26, $width, $height, $alpha);
ImageFilledRectangle($new, 13, $height-20, 15, $height-7, $black);
ImageTTFText($new, 4.9, 0, 20, $height-14, $black, $this->fontName, $text[0]);
ImageTTFText($new, 4.9, 0, 20, $height-6, $black, $this->fontName, $text[1]);
//*/
if ($this->toFile)
{
if (file_exists($this->galleryPath . $newName))
unlink($this->galleryPath . $newName);
ImageJPEG($new, $this->galleryPath . $newName);
ImageDestroy($new);
ImageDestroy($img);
return $this->galleryPath . $newName;
}
else
{
ImageJPEG($new);
ImageDestroy($new);
ImageDestroy($img);
}
}
//==========================================
// 函数: moveToGallery($sourFile)
// 功能: 给图片加水印
// 参数: $sourFile 图片文件名
// 返回: 1 成功 成功时返回生成的图片路径
//==========================================
function moveToGallery($sourFile)
{
$sourFile = $this->sourcePath . $sourFile;
$imageInfo = $this->getInfo($sourFile);
//图片新名称
$newName = $sourFile;
switch ($imageInfo["type"])
{
case 1: //gif
$img = imagecreatefromgif($sourFile);
break;
case 2: //jpg
$img = imagecreatefromjpeg($sourFile);
break;
case 3: //png
$img = imagecreatefrompng($sourFile);
break;
default:
return 0;
break;
}
if (!$img)
return 0;
$width = ($this->maxWidth > $imageInfo["width"]) ? $imageInfo["width"] : $this->maxWidth;
$height = ($this->maxHeight > $imageInfo["height"]) ? $imageInfo["height"] : $this->maxHeight;
$srcW = $imageInfo["width"];
$srcH = $imageInfo["height"];
if ($srcW * $width > $srcH * $height)
$height = round($srcH * $width / $srcW);
else
$width = round($srcW * $height / $srcH);
//*
if (function_exists("imagecreatetruecolor")) //GD2.0.1
{
$new = imagecreatetruecolor($width, $height);
ImageCopyResampled($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
}
else
{
$new = imagecreate($width, $height);
ImageCopyResized($new, $img, 0, 0, 0, 0, $width, $height, $imageInfo["width"], $imageInfo["height"]);
}
if (file_exists($this->galleryPath . $newName))
unlink($this->galleryPath . $newName);
ImageJPEG($new, $this->galleryPath . $newName);
ImageDestroy($new);
ImageDestroy($img);
return $this->galleryPath . $newName;
}
//==========================================
// 函数: getThumb($file)
// 功能: 取得指定图片的缩略图名称
// 参数: $file 文件名
// 返回: 0 图片不存在 成功返回两个元素的数组
// realPath元素表示缩略图的实际物理路径
// netPath表示用于显示图片的网络路径
//==========================================
function getThumb($file)
{
$thumbName = substr($file, 0, strrpos($file, ".")) . "_thumb.jpg";
$file = $this->galleryPath . $thumbName;
if (!file_exists($file))
return 0;
$thumb['realPath'] = $this->galleryPath . $thumbName;
$thumb['netPath'] = $this->displayPath . $thumbName;
return $thumb;
}
//==========================================
// 函数: getMark($file)
// 功能: 取得指定图片的水印图名称
// 参数: $file 文件名
// 返回: 0 图片不存在 成功返回两个元素的数组
// realPath元素表示水印图的实际物理路径
// netPath表示用于显示图片的网络路径
//==========================================
function getMark($file)
{
$markName = substr($file, 0, strrpos($file, ".")) . "_mark.jpg";
$file = $this->galleryPath . $markName;
if (!file_exists($file))
return 0;
$mark['realPath'] = $this->galleryPath . $markName;
$mark['netPath'] = $this->displayPath . $markName;
return $mark;
}
//==========================================
// 函数: removeImage($file)
// 功能: 删除图片
// 参数: $file 文件名称或数组
// 返回: 删除的文件个数
//==========================================
function removeImage($file)
{
if(is_array($file))//是数组，循环删除
{
foreach($file as $val)
{
$thumbName = $this->galleryPath . substr($val, 0, strrpos($val, ".")) . "_thumb.jpg";
$markName = $this->galleryPath . substr($val, 0, strrpos($val, ".")) . "_mark.jpg";
$oriName = $this->galleryPath . $val;
if(file_exists($thumbName))
{
@unlink($thumbName);
}
if(file_exists($markName))
{
@unlink($markName);
}
if(file_exists($oriName))
{
@unlink($oriName);
}
}
}
else
{
$thumbName = $this->galleryPath . substr($file, 0, strrpos($file, ".")) . "_thumb.jpg";
$markName = $this->galleryPath . substr($file, 0, strrpos($file, ".")) . "_mark.jpg";
$oriName = $this->galleryPath . $file;
if(file_exists($thumbName))
{
@unlink($thumbName);
}
if(file_exists($markName))
{
@unlink($markName);
}
if(file_exists($oriName))
{
@unlink($oriName);
}
}
}
//==========================================
// 函数: getInfo($file)
// 功能: 返回图像信息
// 参数: $file 文件名称
// 返回: 图片信息数组
//==========================================
function getInfo($file)
{
$data = getimagesize($file);
$imageInfo["width"] = $data[0];
$imageInfo["height"]= $data[1];
$imageInfo["type"] = $data[2];
$imageInfo["name"] = basename($file);
$imageInfo["size"] = filesize($file);
return $imageInfo;
}
//==========================================
// 函数: uploadImage($file)
// 功能: 处理上传图片
// 参数: $file 上传表单file的name值
// 返回: $newName 上传后的图片名称
//==========================================
function uploadImage($fileName)
{
$img = !empty($_FILES[$fileName]) ? $_FILES[$fileName] : null;
if($img == null)
return 0;
if ($this->useTimeAsFileName)
{
$now = date("Ymdhis");
$p = strrpos($img['name'], "."); //得到最后一个.的位置
$ext = substr($img['name'], $p+1); //得到图片扩展名
$newName = $now . "." . $ext; //要保存图片的全名
}
else
{
$newName = $img['name'];
}
$imgPath = $this->sourcePath . $newName;
if (move_uploaded_file($img['tmp_name'], $imgPath)) //上传成功
{
return $newName;
}
else
{
return 0;
}
}
}
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