php多功能图片处理类分享_php实例_脚本之家

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复制代码 代码如下:setSrcImg;
$t->setCutType;//这一句就OK了 $t->setDstImg; $t->createImg;
手工裁切: 程序会按照指定的位置从源图上取图 $t->setSrcImg;
$t->setCutType;//指明为手工裁切 $t->setSrcCutPosition;//
源图起点坐标 $t->setRectangleCut;// 裁切尺寸 $t->setDstImg;
$t->createImg; */ class ThumbHandler { var $dst_img;// 目标文件 var
$h_src; // 图片资源句柄 var $h_dst;// 新图句柄 var $h_mask;//
水印句柄 var $img_create_quality = 100;// 图片生成质量 var
$img_display_quality = 80;// 图片显示质量,默认为75 var $img_scale =
0;// 图片缩放比例 var $src_w = 0;// 原图宽度 var $src_h = 0;//
原图高度 var $dst_w = 0;// 新图总宽度 var $dst_h = 0;// 新图总高度 var
$fill_w;// 填充图形宽 var $fill_h;// 填充图形高 var $copy_w;//
拷贝图形宽 var $copy_h;// 拷贝图形高 var $src_x = 0;//
原图绘制起始横坐标 var $src_y = 0;// 原图绘制起始纵坐标 var
$start_x;// 新图绘制起始横坐标 var $start_y;// 新图绘制起始纵坐标 var
$mask_word;// 水印文字 var $mask_img;// 水印图片 var $mask_pos_x =
0;// 水印横坐标 var $mask_pos_y = 0;// 水印纵坐标 var $mask_offset_x
= 5;// 水印横向偏移 var $mask_offset_y = 5;// 水印纵向偏移 var
$font_w;// 水印字体宽 var $font_h;// 水印字体高 var $mask_w;// 水印宽
var $mask_h;// 水印高 var $mask_font_color = “#ffffff”;//
水印文字颜色 var $mask_font = 2;// 水印字体 var $font_size;// 尺寸 var
$mask_position = 0;// 水印位置 var $mask_img_pct = 50;//
图片合并程度,值越大,合并程序越低 var $mask_txt_pct = 50;//
文字合并程度,值越小,合并程序越低 var $img_border_size = 0;//
图片边框尺寸 var $img_border_color;// 图片边框颜色 var $_flip_x=0;//
水平翻转次数 var $_flip_y=0;// 垂直翻转次数 var $cut_type=0;//
剪切类型 var $img_type;// 文件类型 //
文件类型定义,并指出了输出图片的函数 var $all_type = array( “jpg” =>
array(“output”=>”imagejpeg”), “gif” => array, “png” => array,
“wbmp” => array(“output”=>”image2wbmp”), “jpeg” =>
array(“output”=>”imagejpeg”)); /** * 构造函数 */ function
ThumbHandler() { $this->mask_font_color = “#ffffff”;
$this->font = 2; $this->font_size = 12; } /** * 取得图片的宽
*/ function getImgWidth { return imagesx; } /** * 取得图片的高 */
function getImgHeight { return imagesy; } /** * 设置图片生成路径 *
* @param string $src_img 图片生成路径 */ function
setSrcImg($src_img, $img_type=null) { if(!file_exists { die; } if {
$this->img_type = $img_type; } else { $this->img_type =
$this->_getImgType; } $this->_checkValid; //
file_get_contents函数要求php版本>4.3.0 $src = ”;
if(function_exists { $src = file_get_contents; } else { $handle =
fopen ; while { $src .= fgets; } fclose ; } if { die; } $this->h_src
= @ImageCreateFromString; $this->src_w = $this->getImgWidth;
$this->src_h = $this->getImgHeight; } /** * 设置图片生成路径
* * @param string $dst_img 图片生成路径 */ function setDstImg { $arr
= explode; $last = array_pop; $path = implode; $this->_mkdirs;
$this->dst_img = $dst_img; } /** * 设置图片的显示质量 * *
@param string $n 质量 */ function setImgDisplayQuality {
$this->img_display_quality = $n; } /** * 设置图片的生成质量 *
* @param string $n 质量 */ function setImgCreateQuality {
$this->img_create_quality = $n; } /** * 设置文字水印 * *
@param string $word 水印文字 * @param integer $font 水印字体 * @param
string $color 水印字体颜色 */ function setMaskWord {
$this->mask_word .= $word; } /** * 设置字体颜色 * * @param
string $color 字体颜色 */ function setMaskFontColor {
$this->mask_font_color = $color; } /** * 设置水印字体 * *
@param string|integer $font 字体 */ function setMaskFont { if &&
!file_exists { die; } $this->font = $font; } /** *
设置文字字体大小,仅对truetype字体有效 */ function setMaskFontSize {
$this->font_size = $size; } /** * 设置图片水印 * * @param
string $img 水印图片源 */ function setMaskImg { $this->mask_img =
$img; } /** * 设置水印横向偏移 * * @param integer $x 横向偏移量 */
function setMaskOffsetX { $this->mask_offset_x = $x; } /** *
设置水印纵向偏移 * * @param integer $y 纵向偏移量 */ function
setMaskOffsetY { $this->mask_offset_y = $y; } /** * 指定水印位置
* * @param integer $position 位置,1:左上,2:左下,3:右上,0/4:右下 */
function setMaskPosition { $this->mask_position = $position; } /**
* 设置图片合并程度 * * @param integer $n 合并程度 */ function
setMaskImgPct { $this->mask_img_pct = $n; } /** *
设置文字合并程度 * * @param integer $n 合并程度 */ function
setMaskTxtPct { $this->mask_txt_pct = $n; } /** * 设置缩略图边框
* * @param */ function setDstImgBorder($size=1, $color=”#000000″) {
$this->img_border_size = $size; $this->img_border_color =
$color; } /** * 水平翻转 */ function flipH() {
$this->_flip_x++; } /** * 垂直翻转 */ function flipV() {
$this->_flip_y++; } /** * 设置剪切类型 * * @param */ function
setCutType { $this->cut_type = $type; } /** * 设置图片剪切 * *
@param integer $width 矩形剪切 */ function setRectangleCut {
$this->fill_w = $width; $this->fill_h = $height; } /** *
设置源图剪切起始坐标点 * * @param */ function setSrcCutPosition {
$this->src_x = $x; $this->src_y = $y; } /** * 创建图片,主函数
* @param integer $a 当缺少第二个参数时,此参数将用作百分比, *
否则作为宽度值 * @param integer $b 图片缩放后的高度 */ function
createImg { $num = func_num_args { $r = { die; } $this->img_scale
= $r; $this->_setNewImgSize { $w = $b; if { die; } if { die; }
$this->_setNewImgSize; } if { $this->_flipH; } if {
$this->_flipV; } $this->_createMask; // 释放 if(imagedestroy &&
imagedestroy { Return true; } else { Return false; } } /** *
生成水印,调用了生成水印文字和水印图片两个方法 */ function
_createMask() { if { // 获取字体信息 $this->_setFontInfo(); if {
die; } else { $this->h_dst = imagecreatetruecolor($this->dst_w,
$this->dst_h); $white =
ImageColorAllocate($this->h_dst,255,255,255);
imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);//
填充背景色 $this->_drawBorder(); imagecopyresampled(
$this->h_dst, $this->h_src, $this->start_x,
$this->start_y, $this->src_x, $this->src_y,
$this->fill_w, $this->fill_h, $this->copy_w,
$this->copy_h); $this->_createMaskWord; } } if {
$this->_loadMaskImg();//加载时,取得宽高 if { //
将水印生成在原图上再拷 $this->_createMaskImg; $this->h_dst =
imagecreatetruecolor($this->dst_w, $this->dst_h); $white =
ImageColorAllocate($this->h_dst,255,255,255);
imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);//
填充背景色 $this->_drawBorder(); imagecopyresampled(
$this->h_dst, $this->h_src, $this->start_x,
$this->start_y, $this->src_x, $this->src_y,
$this->fill_w, $this->start_y, $this->copy_w,
$this->copy_h); } else { // 创建新图并拷贝 $this->h_dst =
imagecreatetruecolor($this->dst_w, $this->dst_h); $white =
ImageColorAllocate($this->h_dst,255,255,255);
imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);//
填充背景色 $this->_drawBorder(); imagecopyresampled(
$this->h_dst, $this->h_src, $this->start_x,
$this->start_y, $this->src_x, $this->src_y,
$this->fill_w, $this->fill_h, $this->copy_w,
$this->copy_h); $this->_createMaskImg; } } if(empty && empty {
$this->h_dst = imagecreatetruecolor($this->dst_w,
$this->dst_h); $white =
ImageColorAllocate($this->h_dst,255,255,255);
imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);//
填充背景色 $this->_drawBorder(); imagecopyresampled(
$this->h_dst, $this->h_src, $this->start_x,
$this->start_y, $this->src_x, $this->src_y,
$this->fill_w, $this->fill_h, $this->copy_w,
$this->copy_h); } } /** * 画边框 */ function _drawBorder() {
if(!empty($this->img_border_size)) { $c =
$this->_parseColor($this->img_border_color); $color =
ImageColorAllocate($this->h_src,$c[0], $c[1], $c[2]);
imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$color);//
填充背景色 } } /** * 生成水印文字 */ function _createMaskWord {
$this->_countMaskPos(); $this->_checkMaskValid(); $c =
$this->_parseColor($this->mask_font_color); $color =
imagecolorallocatealpha($src, $c[0], $c[1], $c[2],
$this->mask_txt_pct); if(is_numeric { imagestring($src,
$this->font, $this->mask_pos_x, $this->mask_pos_y,
$this->mask_word, $color); } else { imagettftext($src,
$this->font_size, 0, $this->mask_pos_x, $this->mask_pos_y,
$color, $this->font, $this->mask_word); } } /** * 生成水印图
*/ function _createMaskImg { $this->_countMaskPos();
$this->_checkMaskValid(); imagecopymerge($src, $this->h_mask,
$this->mask_pos_x ,$this->mask_pos_y, 0, 0, $this->mask_w,
$this->mask_h, $this->mask_img_pct); imagedestroy; } /** *
加载水印图 */ function _loadMaskImg() { $mask_type =
$this->_getImgType; $this->_checkValid; //
file_get_contents函数要求php版本>4.3.0 $src = ”;
if(function_exists { $src = file_get_contents; } else { $handle =
fopen ; while { $src .= fgets; } fclose ; } if(empty { die; }
$this->h_mask = ImageCreateFromString; $this->mask_w =
$this->getImgWidth; $this->mask_h = $this->getImgHeight; }
/** * 图片输出 */ function _output() { $img_type =
$this->img_type; $func_name =
$this->all_type[$img_type][‘output’]; if(function_exists { //
判断浏览器,若是IE就不发送头 if(isset($_SERVER[‘HTTP_USER_AGENT’]))
{ $ua = strtoupper($_SERVER[‘HTTP_USER_AGENT’]);
if(!preg_match$/i’,$ua)) { header(“Content-type:$img_type”); } }
$func_name($this->h_dst, $this->dst_img,
$this->img_display_quality); } else { Return false; } } /** *
分析颜色 * * @param string $color 十六进制颜色 */ function
_parseColor { $arr = array(); for($ii=1; $ii_isFull { switch { case 1:
// 左上 $this->mask_pos_x = $this->mask_offset_x +
$this->img_border_size; $this->mask_pos_y =
$this->mask_offset_y + $this->img_border_size; break; case 2:
// 左下 $this->mask_pos_x = $this->mask_offset_x +
$this->img_border_size; $this->mask_pos_y = $this->src_h –
$this->mask_h – $this->mask_offset_y; break; case 3: // 右上
$this->mask_pos_x = $this->src_w – $this->mask_w –
$this->mask_offset_x; $this->mask_pos_y =
$this->mask_offset_y + $this->img_border_size; break; case 4:
// 右下 $this->mask_pos_x = $this->src_w – $this->mask_w –
$this->mask_offset_x; $this->mask_pos_y = $this->src_h –
$this->mask_h – $this->mask_offset_y; break; default: //
默认将水印放到右下,偏移指定像素 $this->mask_pos_x =
$this->src_w – $this->mask_w – $this->mask_offset_x;
$this->mask_pos_y = $this->src_h – $this->mask_h –
$this->mask_offset_y; break; } } else { switch { case 1: // 左上
$this->mask_pos_x = $this->mask_offset_x +
$this->img_border_size; $this->mask_pos_y =
$this->mask_offset_y + $this->img_border_size; break; case 2:
// 左下 $this->mask_pos_x = $this->mask_offset_x +
$this->img_border_size; $this->mask_pos_y = $this->dst_h –
$this->mask_h – $this->mask_offset_y –
$this->img_border_size; break; case 3: // 右上
$this->mask_pos_x = $this->dst_w – $this->mask_w –
$this->mask_offset_x – $this->img_border_size;
$this->mask_pos_y = $this->mask_offset_y +
$this->img_border_size; break; case 4: // 右下
$this->mask_pos_x = $this->dst_w – $this->mask_w –
$this->mask_offset_x – $this->img_border_size;
$this->mask_pos_y = $this->dst_h – $this->mask_h –
$this->mask_offset_y – $this->img_border_size; break; default:
// 默认将水印放到右下,偏移指定像素 $this->mask_pos_x =
$this->dst_w – $this->mask_w – $this->mask_offset_x –
$this->img_border_size; $this->mask_pos_y = $this->dst_h –
$this->mask_h – $this->mask_offset_y –
$this->img_border_size; break; } } } /** * 设置字体信息 */
function _setFontInfo() { if(is_numeric { $this->font_w =
imagefontwidth; $this->font_h = imagefontheight; //
计算水印字体所占宽高 $word_length = strlen; $this->mask_w =
$this->font_w*$word_length; $this->mask_h = $this->font_h;
} else { $arr = imagettfbbox ($this->font_size,0,
$this->font,$this->mask_word); $this->mask_w = abs;
$this->mask_h = abs; } } /** * 设置新图尺寸 * * @param integer
$img_w 目标宽度 * @param integer $img_h 目标高度 */ function
_setNewImgSize { $num = func_num_args { $this->img_scale =
$img_w;// 宽度作为比例 $this->fill_w = round($this->src_w *
$this->img_scale / 100) – $this->img_border_size*2;
$this->fill_h = round($this->src_h * $this->img_scale /
100) – $this->img_border_size*2; // 源文件起始坐标
$this->src_x = 0; $this->src_y = 0; $this->copy_w =
$this->src_w; $this->copy_h = $this->src_h; // 目标尺寸
$this->dst_w = $this->fill_w + $this->img_border_size*2;
$this->dst_h = $this->fill_h + $this->img_border_size*2; }
if { $fill_w = $img_w – $this->img_border_size*2; $fill_h =
$img_h – $this->img_border_size*2; if($fill_w < 0 || $fill_h
< 0) { die; } $rate_w = $this->src_w/$fill_w; $rate_h =
$this->src_h/$fill_h; switch { case 0: //
如果原图大于缩略图,产生缩小,否则不缩小 if($rate_w < 1 && $rate_h
< 1) { $this->fill_w = $this->src_w; $this->fill_h =
$this->src_h; } else { if { $this->fill_w = $fill_w;
$this->fill_h = round; } else { $this->fill_w = round;
$this->fill_h = $fill_h; } } $this->src_x = 0; $this->src_y
= 0; $this->copy_w = $this->src_w; $this->copy_h =
$this->src_h; // 目标尺寸 $this->dst_w = $this->fill_w +
$this->img_border_size*2; $this->dst_h = $this->fill_h +
$this->img_border_size*2; break; // 自动裁切 case 1: //
如果图片是缩小剪切才进行操作 if($rate_w >= 1 && $rate_h >=1) {
if($this->src_w > $this->src_h) { $src_x =
round($this->src_w-$this->src_h)/2; $this->setSrcCutPosition;
$this->setRectangleCut; $this->copy_w = $this->src_h;
$this->copy_h = $this->src_h; } elseif($this->src_w <
$this->src_h) { $src_y =
round($this->src_h-$this->src_w)/2; $this->setSrcCutPosition;
$this->setRectangleCut; $this->copy_w = $this->src_w;
$this->copy_h = $this->src_w; } else {
$this->setSrcCutPosition; $this->copy_w = $this->src_w;
$this->copy_h = $this->src_w; $this->setRectangleCut; } }
else { $this->setSrcCutPosition;
$this->setRectangleCut($this->src_w, $this->src_h);
$this->copy_w = $this->src_w; $this->copy_h =
$this->src_h; } // 目标尺寸 $this->dst_w = $this->fill_w +
$this->img_border_size*2; $this->dst_h = $this->fill_h +
$this->img_border_size*2; break; // 手工裁切 case 2:
$this->copy_w = $this->fill_w; $this->copy_h =
$this->fill_h; // 目标尺寸 $this->dst_w = $this->fill_w +
$this->img_border_size*2; $this->dst_h = $this->fill_h +
$this->img_border_size*2; break; default: break; } } //
目标文件起始坐标 $this->start_x = $this->img_border_size;
$this->start_y = $this->img_border_size; } /** *
检查水印图是否大于生成后的图片宽高 */ function _isFull() { Return (
$this->mask_w + $this->mask_offset_x > $this->fill_w ||
$this->mask_h + $this->mask_offset_y > $this->fill_h)
?true:false; } /** * 检查水印图是否超过原图 */ function
_checkMaskValid() { if( $this->mask_w + $this->mask_offset_x
> $this->src_w || $this->mask_h + $this->mask_offset_y
> $this->src_h) { die; } } /** * 取得图片类型 * * @param
string $file_path 文件路径 */ function _getImgType { $type_list =
array(“1″=>”gif”,”2″=>”jpg”,”3″=>”png”,”4″=>”swf”,”5″ =>
“psd”,”6″=>”bmp”,”15″=>”wbmp”); if(file_exists { $img_info =
@getimagesize ; if(isset($type_list[$img_info[2]])) { Return
$type_list[$img_info[2]]; } } else { die; } } /** *
检查图片类型是否合法,调用了array_key_exists函数,此函数要求 *
php版本大于4.1.0 * * @param string $img_type 文件类型 */ function
_checkValid { if(!array_key_exists($img_type, $this->all_type))
{ Return false; } } /** * 按指定路径生成目录 * * @param string
$path 路径 */ function _mkdirs { $adir = explode; $dirlist = ”;
$rootdir = array_shift;
if(($rootdir!=’.’||$rootdir!=’..’)&&!file_exists { @mkdir; } foreach {
if($val!=’.’&&$val!=’..’) { $dirlist .= “/”.$val; $dirpath =
$rootdir.$dirlist; if(!file_exists { @mkdir; @chmod; } } } } /** *
垂直翻转 * * @param string $src 图片源 */ function _flipV { $src_x
= $this->getImgWidth; $src_y = $this->getImgHeight; $new_im =
imagecreatetruecolor; for ($y = 0; $y < $src_y; $y++) {
imagecopy($new_im, $src, 0, $src_y – $y – 1, 0, $y, $src_x, 1); }
$this->h_src = $new_im; } /** * 水平翻转 * * @param string
$src 图片源 */ function _flipH { $src_x = $this->getImgWidth;
$src_y = $this->getImgHeight; $new_im = imagecreatetruecolor; for
($x = 0; $x < $src_x; $x++) { imagecopy($new_im, $src, $src_x – $x

复制代码 代码如下:

function _countMaskPos() { if($this-_isFull()) {
switch($this-mask_position) { case 1: // 左上 $this-mask_pos_x =
$this-mask_offset_x + $this-img_border_size; $this-mask_pos_y =
$this-mask_offset_y + $this-img_border_size; break; case 2: // 左下
$this-mask_pos_x = $this-mask_offset_x + $this-img_border_size;
$this-mask_pos_y = $this-src_h – $this-mask_h –
$this-mask_offset_y; break; case 3: // 右上 $this-mask_pos_x =
$this-src_w – $this-mask_w – $this-mask_澳门新葡萄京娱乐场,offset_x; $this-mask_pos_y
= $this-mask_offset_y + $this-img_border_size; break; case 4: //
右下 $this-mask_pos_x = $this-src_w – $this-mask_w –
$this-mask_offset_x; $this-mask_pos_y = $this-src_h – $this-mask_h

  • 1, 0, $x, 0, 1, $src_y); } $this->h_src = $new_im; } } ?>

/**
* 基本图片处理,用于完成图片缩入,水印添加
* 当水印图超过目标图片尺寸时,水印图能自动适应目标图片而缩小
* 水印图可以设置跟背景的合并度
*
* Copyright(c) 2005 by ustb99. All rights reserved
*
* To contact the author write to {@link mailto:ustb80@163.com}
*
* @author 偶然
* @version $Id: thumb.class.php,v 1.9 2006/09/30 09:31:56 zengjian Exp
$
* @package system
*/
/**
* ThumbHandler
* @access public
*/
/*
使用方法:
自动裁切:
程序会按照图片的尺寸从中部裁切最大的正方形,并按目标尺寸进行缩略
$t->setSrcImg(“img/test.jpg”);
$t->setCutType(1);//这一句就OK了
$t->setDstImg(“tmp/new_test.jpg”);
$t->createImg(60,60);
手工裁切:
程序会按照指定的位置从源图上取图
$t->setSrcImg(“img/test.jpg”);
$t->setCutType(2);//指明为手工裁切
$t->setSrcCutPosition(100, 100);// 源图起点坐标
$t->setRectangleCut(300, 200);// 裁切尺寸
$t->setDstImg(“tmp/new_test.jpg”);
$t->createImg(300,200);
*/
class ThumbHandler
{
var $dst_img;// 目标文件
var $h_src; // 图片资源句柄
var $h_dst;// 新图句柄
var $h_mask;// 水印句柄
var $img_create_quality = 100;// 图片生成质量
var $img_display_quality = 80;// 图片显示质量,默认为75
var $img_scale = 0;// 图片缩放比例
var $src_w = 0;// 原图宽度
var $src_h = 0;// 原图高度
var $dst_w = 0;// 新图总宽度
var $dst_h = 0;// 新图总高度
var $fill_w;// 填充图形宽
var $fill_h;// 填充图形高
var $copy_w;// 拷贝图形宽
var $copy_h;// 拷贝图形高
var $src_x = 0;// 原图绘制起始横坐标
var $src_y = 0;// 原图绘制起始纵坐标
var $start_x;// 新图绘制起始横坐标
var $start_y;// 新图绘制起始纵坐标
var $mask_word;// 水印文字
var $mask_img;// 水印图片
var $mask_pos_x = 0;// 水印横坐标
var $mask_pos_y = 0;// 水印纵坐标
var $mask_offset_x = 5;// 水印横向偏移
var $mask_offset_y = 5;// 水印纵向偏移
var $font_w;// 水印字体宽
var $font_h;// 水印字体高
var $mask_w;// 水印宽
var $mask_h;// 水印高
var $mask_font_color = “#ffffff”;// 水印文字颜色
var $mask_font = 2;// 水印字体
var $font_size;// 尺寸
var $mask_position = 0;// 水印位置
var $mask_img_pct = 50;// 图片合并程度,值越大,合并程序越低
var $mask_txt_pct = 50;// 文字合并程度,值越小,合并程序越低
var $img_border_size = 0;// 图片边框尺寸
var $img_border_color;// 图片边框颜色
var $_flip_x=0;// 水平翻转次数
var $_flip_y=0;// 垂直翻转次数
var $cut_type=0;// 剪切类型
var $img_type;// 文件类型
// 文件类型定义,并指出了输出图片的函数
var $all_type = array(
“jpg” => array(“output”=>”imagejpeg”),
“gif” => array(“output”=>”imagegif”),
“png” => array(“output”=>”imagepng”),
“wbmp” => array(“output”=>”image2wbmp”),
“jpeg” => array(“output”=>”imagejpeg”));
/**
* 构造函数
*/
function ThumbHandler()
{
$this->mask_font_color = “#ffffff”;
$this->font = 2;
$this->font_size = 12;
}
/**
* 取得图片的宽
*/
function getImgWidth($src)
{
return imagesx($src);
}
/**
* 取得图片的高
*/
function getImgHeight($src)
{
return imagesy($src);
}
/**
* 设置图片生成路径
*
* @param string $src_img 图片生成路径
*/
function setSrcImg($src_img, $img_type=null)
{
if(!file_exists($src_img))
{
die(“图片不存在”);
}
if(!emptyempty($img_type))
{
$this->img_type = $img_type;
}
else
{
$this->img_type = $this->_getImgType($src_img);
}
$this->_checkValid($this->img_type);
// file_get_contents函数要求php版本>4.3.0
$src = ”;
if(function_exists(“file_get_contents”))
{
$src = file_get_contents($src_img);
}
else
{
$handle = fopen ($src_img, “r”);
while (!feof ($handle))
{
$src .= fgets($fd, 4096);
}
fclose ($handle);
}
if(emptyempty($src))
{
die(“图片源为空”);
}
$this->h_src = @ImageCreateFromString($src);
$this->src_w = $this->getImgWidth($this->h_src);
$this->src_h = $this->getImgHeight($this->h_src);
}
/**
* 设置图片生成路径
*
* @param string $dst_img 图片生成路径
*/
function setDstImg($dst_img)
{
$arr = explode(‘/’,$dst_img);
$last = array_pop($arr);
$path = implode(‘/’,$arr);
$this->_mkdirs($path);
$this->dst_img = $dst_img;
}
/**
* 设置图片的显示质量
*
* @param string $n 质量
*/
function setImgDisplayQuality($n)
{
$this->img_display_quality = (int)$n;
}
/**
* 设置图片的生成质量
*
* @param string $n 质量
*/
function setImgCreateQuality($n)
{
$this->img_create_quality = (int)$n;
}
/**
* 设置文字水印
*
* @param string $word 水印文字
* @param integer $font 水印字体
* @param string $color 水印字体颜色
*/
function setMaskWord($word)
{
$this->mask_word .= $word;
}
/**
* 设置字体颜色
*
* @param string $color 字体颜色
*/
function setMaskFontColor($color=”#ffffff”)
{
$this->mask_font_color = $color;
}
/**
* 设置水印字体
*
* @param string|integer $font 字体
*/
function setMaskFont($font=2)
{
if(!is_numeric($font) && !file_exists($font))
{
die(“字体文件不存在”);
}
$this->font = $font;
}
/**
* 设置文字字体大小,仅对truetype字体有效
*/
function setMaskFontSize($size = “12”)
{
$this->font_size = $size;
}
/**
* 设置图片水印
*
* @param string $img 水印图片源
*/
function setMaskImg($img)
{
$this->mask_img = $img;
}
/**
* 设置水印横向偏移
*
* @param integer $x 横向偏移量
*/
function setMaskOffsetX($x)
{
$this->mask_offset_x = (int)$x;
}
/**
* 设置水印纵向偏移
*
* @param integer $y 纵向偏移量
*/
function setMaskOffsetY($y)
{
$this->mask_offset_y = (int)$y;
}
/**
* 指定水印位置
*
* @param integer $position 位置,1:左上,2:左下,3:右上,0/4:右下
*/
function setMaskPosition($position=0)
{
$this->mask_position = (int)$position;
}
/**
* 设置图片合并程度
*
* @param integer $n 合并程度
*/
function setMaskImgPct($n)
{
$this->mask_img_pct = (int)$n;
}
/**
* 设置文字合并程度
*
* @param integer $n 合并程度
*/
function setMaskTxtPct($n)
{
$this->mask_txt_pct = (int)$n;
}
/**
* 设置缩略图边框
*
* @param (类型) (参数名) (描述)
*/
function setDstImgBorder($size=1, $color=”#000000″)
{
$this->img_border_size = (int)$size;
$this->img_border_color = $color;
}
/**
* 水平翻转
*/
function flipH()
{
$this->_flip_x++;
}
/**
* 垂直翻转
*/
function flipV()
{
$this->_flip_y++;
}
/**
* 设置剪切类型
*
* @param (类型) (参数名) (描述)
*/
function setCutType($type)
{
$this->cut_type = (int)$type;
}
/**
* 设置图片剪切
*
* @param integer $width 矩形剪切
*/
function setRectangleCut($width, $height)
{
$this->fill_w = (int)$width;
$this->fill_h = (int)$height;
}
/**
* 设置源图剪切起始坐标点
*
* @param (类型) (参数名) (描述)
*/
function setSrcCutPosition($x, $y)
{
$this->src_x = (int)$x;
$this->src_y = (int)$y;
}
/**
* 创建图片,主函数
* @param integer $a 当缺少第二个参数时,此参数将用作百分比,
* 否则作为宽度值
* @param integer $b 图片缩放后的高度
*/
function createImg($a, $b=null)
{
$num = func_num_args();
if(1 == $num)
{
$r = (int)$a;
if($r < 1)
{
die(“图片缩放比例不得小于1”);
}
$this->img_scale = $r;
$this->_setNewImgSize($r);
}
if(2 == $num)
{
$w = (int)$a;
$h = (int)$b;
if(0 == $w)
{
die(“目标宽度不能为0”);
}
if(0 == $h)
{
die(“目标高度不能为0”);
}
$this->_setNewImgSize($w, $h);
}
if($this->_flip_x%2!=0)
{
$this->_flipH($this->h_src);
}
if($this->_flip_y%2!=0)
{
$this->_flipV($this->h_src);
}
$this->_createMask();
$this->_output();
// 释放
if(imagedestroy($this->h_src) && imagedestroy($this->h_dst))
{
Return true;
}
else
{
Return false;
}
}
/**
* 生成水印,调用了生成水印文字和水印图片两个方法
*/
function _createMask()
{
if($this->mask_word)
{
// 获取字体信息
$this->_setFontInfo();
if($this->_isFull())
{
die(“水印文字过大”);
}
else
{
$this->h_dst = imagecreatetruecolor($this->dst_w,
$this->dst_h);
$white = ImageColorAllocate($this->h_dst,255,255,255);
imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);//
填充背景色
$this->_drawBorder();
imagecopyresampled( $this->h_dst, $this->h_src,
$this->start_x, $this->start_y,
$this->src_x, $this->src_y,
$this->fill_w, $this->fill_h,
$this->copy_w, $this->copy_h);
$this->_createMaskWord($this->h_dst);
}
}
if($this->mask_img)
{
$this->_loadMaskImg();//加载时,取得宽高
if($this->_isFull())
{
// 将水印生成在原图上再拷
$this->_createMaskImg($this->h_src);
$this->h_dst = imagecreatetruecolor($this->dst_w,
$this->dst_h);
$white = ImageColorAllocate($this->h_dst,255,255,255);
imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);//
填充背景色
$this->_drawBorder();
imagecopyresampled( $this->h_dst, $this->h_src,
$this->start_x, $this->start_y,
$this->src_x, $this->src_y,
$this->fill_w, $this->start_y,
$this->copy_w, $this->copy_h);
}
else
{
// 创建新图并拷贝
$this->h_dst = imagecreatetruecolor($this->dst_w,
$this->dst_h);
$white = ImageColorAllocate($this->h_dst,255,255,255);
imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);//
填充背景色
$this->_drawBorder();
imagecopyresampled( $this->h_dst, $this->h_src,
$this->start_x, $this->start_y,
$this->src_x, $this->src_y,
$this->fill_w, $this->fill_h,
$this->copy_w, $this->copy_h);
$this->_createMaskImg($this->h_dst);
}
}
if(emptyempty($this->mask_word) &&
emptyempty($this->mask_img))
{
$this->h_dst = imagecreatetruecolor($this->dst_w,
$this->dst_h);
$white = ImageColorAllocate($this->h_dst,255,255,255);
imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);//
填充背景色
$this->_drawBorder();
imagecopyresampled( $this->h_dst, $this->h_src,
$this->start_x, $this->start_y,
$this->src_x, $this->src_y,
$this->fill_w, $this->fill_h,
$this->copy_w, $this->copy_h);
}
}
/**
* 画边框
*/
function _drawBorder()
{
if(!emptyempty($this->img_border_size))
{
$c = $this->_parseColor($this->img_border_color);
$color = ImageColorAllocate($this->h_src,$c[0], $c[1],
$c[2]);
imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$color);//
填充背景色
}
}
/**
* 生成水印文字
*/
function _createMaskWord($src)
{
$this->_countMaskPos();
$this->_checkMaskValid();
$c = $this->_parseColor($this->mask_font_color);
$color = imagecolorallocatealpha($src, $c[0], $c[1], $c[2],
$this->mask_txt_pct);
if(is_numeric($this->font))
{
imagestring($src,
$this->font,
$this->mask_pos_x, $this->mask_pos_y,
$this->mask_word,
$color);
}
else
{
imagettftext($src,
$this->font_size, 0,
$this->mask_pos_x, $this->mask_pos_y,
$color,
$this->font,
$this->mask_word);
}
}
/**
* 生成水印图
*/
function _createMaskImg($src)
{
$this->_countMaskPos();
$this->_checkMaskValid();
imagecopymerge($src,
$this->h_mask,
$this->mask_pos_x ,$this->mask_pos_y,
0, 0,
$this->mask_w, $this->mask_h,
$this->mask_img_pct);
imagedestroy($this->h_mask);
}
/**
* 加载水印图
*/
function _loadMaskImg()
{
$mask_type = $this->_getImgType($this->mask_img);
$this->_checkValid($mask_type);
// file_get_contents函数要求php版本>4.3.0
$src = ”;
if(function_exists(“file_get_contents”))
{
$src = file_get_contents($this->mask_img);
}
else
{
$handle = fopen ($this->mask_img, “r”);
while (!feof ($handle))
{
$src .= fgets($fd, 4096);
}
fclose ($handle);
}
if(emptyempty($this->mask_img))
{
die(“水印图片为空”);
}
$this->h_mask = ImageCreateFromString($src);
$this->mask_w = $this->getImgWidth($this->h_mask);
$this->mask_h = $this->getImgHeight($this->h_mask);
}
/**
* 图片输出
*/
function _output()
{
$img_type = $this->img_type;
$func_name = $this->all_type[$img_type][‘output’];
if(function_exists($func_name))
{
// 判断浏览器,若是IE就不发送头
if(isset($_SERVER[‘HTTP_USER_AGENT’]))
{
$ua = strtoupper($_SERVER[‘HTTP_USER_AGENT’]);
if(!preg_match(‘/^.*MSIE.*)$/i’,$ua))
{
header(“Content-type:$img_type”);
}
}
$func_name($this->h_dst, $this->dst_img,
$this->img_display_quality);
}
else
{
Return false;
}
}
/**
* 分析颜色
*
* @param string $color 十六进制颜色
*/
function _parseColor($color)
{
$arr = array();
for($ii=1; $ii{
$arr[] = hexdec(substr($color,$ii,2));
$ii++;
}
Return $arr;
}
/**
* 计算出位置坐标
*/
function _countMaskPos()
{
if($this->_isFull())
{
switch($this->mask_position)
{
case 1:
// 左上
$this->mask_pos_x = $this->mask_offset_x +
$this->img_border_size;
$this->mask_pos_y = $this->mask_offset_y +
$this->img_border_size;
break;
case 2:
// 左下
$this->mask_pos_x = $this->mask_offset_x +
$this->img_border_size;
$this->mask_pos_y = $this->src_h – $this->mask_h –
$this->mask_offset_y;
break;
case 3:
// 右上
$this->mask_pos_x = $this->src_w – $this->mask_w –
$this->mask_offset_x;
$this->mask_pos_y = $this->mask_offset_y +
$this->img_border_size;
break;
case 4:
// 右下
$this->mask_pos_x = $this->src_w – $this->mask_w –
$this->mask_offset_x;
$this->mask_pos_y = $this->src_h – $this->mask_h –
$this->mask_offset_y;
break;
default:
// 默认将水印放到右下,偏移指定像素
$this->mask_pos_x = $this->src_w – $this->mask_w –
$this->mask_offset_x;
$this->mask_pos_y = $this->src_h – $this->mask_h –
$this->mask_offset_y;
break;
}
}
else
{
switch($this->mask_position)
{
case 1:
// 左上
$this->mask_pos_x = $this->mask_offset_x +
$this->img_border_size;
$this->mask_pos_y = $this->mask_offset_y +
$this->img_border_size;
break;
case 2:
// 左下
$this->mask_pos_x = $this->mask_offset_x +
$this->img_border_size;
$this->mask_pos_y = $this->dst_h – $this->mask_h –
$this->mask_offset_y – $this->img_border_size;
break;
case 3:
// 右上
$this->mask_pos_x = $this->dst_w – $this->mask_w –
$this->mask_offset_x – $this->img_border_size;
$this->mask_pos_y = $this->mask_offset_y +
$this->img_border_size;
break;
case 4:
// 右下
$this->mask_pos_x = $this->dst_w – $this->mask_w –
$this->mask_offset_x – $this->img_border_size;
$this->mask_pos_y = $this->dst_h – $this->mask_h –
$this->mask_offset_y – $this->img_border_size;
break;
default:
// 默认将水印放到右下,偏移指定像素
$this->mask_pos_x = $this->dst_w – $this->mask_w –
$this->mask_offset_x – $this->img_border_size;
$this->mask_pos_y = $this->dst_h – $this->mask_h –
$this->mask_offset_y – $this->img_border_size;
break;
}
}
}
/**
* 设置字体信息
*/
function _setFontInfo()
{
if(is_numeric($this->font))
{
$this->font_w = imagefontwidth($this->font);
$this->font_h = imagefontheight($this->font);
// 计算水印字体所占宽高
$word_length = strlen($this->mask_word);
$this->mask_w = $this->font_w*$word_length;
$this->mask_h = $this->font_h;
}
else
{
$arr = imagettfbbox ($this->font_size,0,
$this->font,$this->mask_word);
$this->mask_w = abs($arr[0] – $arr[2]);
$this->mask_h = abs($arr[7] – $arr[1]);
}
}
/**
* 设置新图尺寸
*
* @param integer $img_w 目标宽度
* @param integer $img_h 目标高度
*/
function _setNewImgSize($img_w, $img_h=null)
{
$num = func_num_args();
if(1 == $num)
{
$this->img_scale = $img_w;// 宽度作为比例
$this->fill_w = round($this->src_w * $this->img_scale /
100) – $this->img_border_size*2;
$this->fill_h = round($this->src_h * $this->img_scale /
100) – $this->img_border_size*2;
// 源文件起始坐标
$this->src_x = 0;
$this->src_y = 0;
$this->copy_w = $this->src_w;
$this->copy_h = $this->src_h;
// 目标尺寸
$this->dst_w = $this->fill_w + $this->img_border_size*2;
$this->dst_h = $this->fill_h + $this->img_border_size*2;
}
if(2 == $num)
{
$fill_w = (int)$img_w – $this->img_border_size*2;
$fill_h = (int)$img_h – $this->img_border_size*2;
if($fill_w < 0 || $fill_h < 0)
{
die(“图片边框过大,已超过了图片的宽度”);
}
$rate_w = $this->src_w/$fill_w;
$rate_h = $this->src_h/$fill_h;
switch($this->cut_type)
{
case 0:
// 如果原图大于缩略图,产生缩小,否则不缩小
if($rate_w < 1 && $rate_h < 1)
{
$this->fill_w = (int)$this->src_w;
$this->fill_h = (int)$this->src_h;
}
else
{
if($rate_w >= $rate_h)
{
$this->fill_w = (int)$fill_w;
$this->fill_h = round($this->src_h/$rate_w);
}
else
{
$this->fill_w = round($this->src_w/$rate_h);
$this->fill_h = (int)$fill_h;
}
}
$this->src_x = 0;
$this->src_y = 0;
$this->copy_w = $this->src_w;
$this->copy_h = $this->src_h;
// 目标尺寸
$this->dst_w = $this->fill_w + $this->img_border_size*2;
$this->dst_h = $this->fill_h + $this->img_border_size*2;
break;
// 自动裁切
case 1:
// 如果图片是缩小剪切才进行操作
if($rate_w >= 1 && $rate_h >=1)
{
if($this->src_w > $this->src_h)
{
$src_x = round($this->src_w-$this->src_h)/2;
$this->setSrcCutPosition($src_x, 0);
$this->setRectangleCut($fill_h, $fill_h);
$this->copy_w = $this->src_h;
$this->copy_h = $this->src_h;
}
elseif($this->src_w < $this->src_h)
{
$src_y = round($this->src_h-$this->src_w)/2;
$this->setSrcCutPosition(0, $src_y);
$this->setRectangleCut($fill_w, $fill_h);
$this->copy_w = $this->src_w;
$this->copy_h = $this->src_w;
}
else
{
$this->setSrcCutPosition(0, 0);
$this->copy_w = $this->src_w;
$this->copy_h = $this->src_w;
$this->setRectangleCut($fill_w, $fill_h);
}
}
else
{
$this->setSrcCutPosition(0, 0);
$this->setRectangleCut($this->src_w, $this->src_h);
$this->copy_w = $this->src_w;
$this->copy_h = $this->src_h;
}
// 目标尺寸
$this->dst_w = $this->fill_w + $this->img_border_size*2;
$this->dst_h = $this->fill_h + $this->img_border_size*2;
break;
// 手工裁切
case 2:
$this->copy_w = $this->fill_w;
$this->copy_h = $this->fill_h;
// 目标尺寸
$this->dst_w = $this->fill_w + $this->img_border_size*2;
$this->dst_h = $this->fill_h + $this->img_border_size*2;
break;
default:
break;
}
}
// 目标文件起始坐标
$this->start_x = $this->img_border_size;
$this->start_y = $this->img_border_size;
}
/**
* 检查水印图是否大于生成后的图片宽高
*/
function _isFull()
{
Return ( $this->mask_w + $this->mask_offset_x >
$this->fill_w
|| $this->mask_h + $this->mask_offset_y >
$this->fill_h)
?true:false;
}
/**
* 检查水印图是否超过原图
*/
function _checkMaskValid()
{
if( $this->mask_w + $this->mask_offset_x >
$this->src_w
|| $this->mask_h + $this->mask_offset_y >
$this->src_h)
{
die(“水印图片尺寸大于原图,请缩小水印图”);
}
}
/**
* 取得图片类型
*
* @param string $file_path 文件路径
*/
function _getImgType($file_path)
{
$type_list =
array(“1″=>”gif”,”2″=>”jpg”,”3″=>”png”,”4″=>”swf”,”5″ =>
“psd”,”6″=>”bmp”,”15″=>”wbmp”);
if(file_exists($file_path))
{
$img_info = @getimagesize ($file_path);
if(isset($type_list[$img_info[2]]))
{
Return $type_list[$img_info[2]];
}
}
else
{
die(“文件不存在,不能取得文件类型!”);
}
}
/**
* 检查图片类型是否合法,调用了array_key_exists函数,此函数要求
* php版本大于4.1.0
*
* @param string $img_type 文件类型
*/
function _checkValid($img_type)
{
if(!array_key_exists($img_type, $this->all_type))
{
Return false;
}
}
/**
* 按指定路径生成目录
*
* @param string $path 路径
*/
function _mkdirs($path)
{
$adir = explode(‘/’,$path);
$dirlist = ”;
$rootdir = array_shift($adir);
if(($rootdir!=’.’||$rootdir!=’..’)&&!file_exists($rootdir))
{
@mkdir($rootdir);
}
foreach($adir as $key=>$val)
{
if($val!=’.’&&$val!=’..’)
{
$dirlist .= “/”.$val;
$dirpath = $rootdir.$dirlist;
if(!file_exists($dirpath))
{
@mkdir($dirpath);
@chmod($dirpath,0777);
}
}
}
}
/**
* 垂直翻转
*
* @param string $src 图片源
*/
function _flipV($src)
{
$src_x = $this->getImgWidth($src);
$src_y = $this->getImgHeight($src);
$new_im = imagecreatetruecolor($src_x, $src_y);
for ($y = 0; $y < $src_y; $y++)
{
imagecopy($new_im, $src, 0, $src_y – $y – 1, 0, $y, $src_x, 1);
}
$this->h_src = $new_im;
}
/**
* 水平翻转
*
* @param string $src 图片源
*/
function _flipH($src)
{
$src_x = $this->getImgWidth($src);
$src_y = $this->getImgHeight($src);
$new_im = imagecreatetruecolor($src_x, $src_y);
for ($x = 0; $x < $src_x; $x++)
{
imagecopy($new_im, $src, $src_x – $x – 1, 0, $x, 0, 1, $src_y);
}
$this->h_src = $new_im;
}
}
使用实例:
< ?php
require_once(‘lib/thumb.class.php’);
$t = new ThumbHandler();
$t->setSrcImg(“img/test.jpg”);
$t->setDstImg(“tmp/new_test.jpg”);
$t->setMaskImg(“img/test.gif”);
$t->setMaskPosition(1);
$t->setMaskImgPct(80);
$t->setDstImgBorder(4,”#dddddd”);
// 指定缩放比例
$t->createImg(300,200);
?>

  • $this-mask_offset_y; break; default: //
    默认将水印放到右下,偏移指定像素 $this-mask_pos_x = $this-src_w –
    $this-mask_w – $this-mask_offset_x; $this-mask_pos_y = $this-src_h
  • $this-mask_h – $this-mask_offset_y; break; } } else {
    switch($this-mask_position) { case 1: // 左上 $this-mask_pos_x =
    $this-mask_offset_x + $this-img_border_size; $this-mask_pos_y =
    $this-mask_offset_y + $this-img_border_size; break; case 2: // 左下
    $this-mask_pos_x = $this-mask_offset_x + $this-img_border_size;
    $this-mask_pos_y = $this-dst_h – $this-mask_h –
    $this-mask_offset_y – $this-img_border_size; break; case 3: // 右上
    $this-mask_pos_x = $this-dst_w – $this-mask_w –
    $this-mask_offset_x – $this-img_border_size; $this-mask_pos_y =
    $this-mask_offset_y + $this-img_border_size; break; case 4: // 右下
    $this-mask_pos_x = $this-dst_w – $this-mask_w –
    $this-mask_offset_x – $this-img_border_size; $this-mask_pos_y =
    $this-dst_h – $this-mask_h – $this-mask_offset_y –
    $this-img_border_size; break; default: //
    默认将水印放到右下,偏移指定像素 $this-mask_pos_x = $this-dst_w –
    $this-mask_w – $this-mask_offset_x – $this-img_border_size;
    $this-mask_pos_y = $this-dst_h – $this-mask_h –
    $this-mask_offset_y – $this-img_border_size; break; } } } /** *
    设置字体信息 */ function _setFontInfo() { if(is_numeric($this-font))
    { $this-font_w = imagefontwidth($this-font); $this-font_h =
    imagefontheight($this-font); // 计算水印字体所占宽高 $word_length =
    strlen($this-mask_word); $this-mask_w = $this-font_w*$word_length;
    $this-mask_h = $this-font_h; } else { $arr = imagettfbbox
    ($this-font_size,0, $this-font,$this-mask_word); $this-mask_w =
    abs($arr[0] – $arr[2]); $this-mask_h = abs($arr[7] – $arr[1]);
    } } /** * 设置新图尺寸 * * @param integer $img_w 目标宽度 *
    @param integer $img_h 目标高度 */ function _setNewImgSize($img_w,
    $img_h=null) { $num = func_num_args(); if(1 == $num) {
    $this-img_scale = $img_w;// 宽度作为比例 $this-fill_w =
    round($this-src_w * $this-img_scale / 100) –
    $this-img_border_size*2; $this-fill_h = round($this-src_h *
    $this-img_scale / 100) – $this-img_border_size*2; // 源文件起始坐标
    $this-src_x = 0; $this-src_y = 0; $this-copy_w = $this-src_w;
    $this-copy_h = $this-src_h; // 目标尺寸 $this-dst_w = $this-fill_w +
    $this-img_border_size*2; $this-dst_h = $this-fill_h +
    $this-img_border_size*2; } if(2 == $num) { $fill_w = (int)$img_w –
    $this-img_border_size*2; $fill_h = (int)$img_h –
    $this-img_border_size*2; if($fill_w 0 || $fill_h 0) {
    die(图片边框过大,已超过了图片的宽度); } $rate_w =
    $this-src_w/$fill_w; $rate_h = $this-src_h/$fill_h;
    switch($this-cut_type) { case 0: //
    如果原图大于缩略图,产生缩小,否则不缩小 if($rate_w 1 $rate_h 1) {
    $this-fill_w = (int)$this-src_w; $this-fill_h = (int)$this-src_h; }
    else { if($rate_w = $rate_h) { $this-fill_w = (int)$fill_w;
    $this-fill_h = round($this-src_h/$rate_w); } else { $this-fill_w =
    round($this-src_w/$rate_h); $this-fill_h = (int)$fill_h; } }
    $this-src_x = 0; $this-src_y = 0; $this-copy_w = $this-src_w;
    $this-copy_h = $this-src_h; // 目标尺寸 $this-dst_w = $this-fill_w +
    $this-img_border_size*2; $this-dst_h = $this-fill_h +
    $this-img_border_size*2 – 10 ;//补偿round误差 消除白边; break; //
    自动裁切 case 1: // 如果图片是缩小剪切才进行操作 if($rate_w = 1
    $rate_h =1) { if($this-src_w $this-src_h) { $src_x =
    round($this-src_w-$this-src_h)/2; $this-setSrcCutPosition($src_x, 0);
    $this-setRectangleCut($fill_h, $fill_h); $this-copy_w = $this-src_h;
    $this-copy_h = $this-src_h; } elseif($this-src_w $this-src_h) {
    $src_y = round($this-src_h-$this-src_w)/2; $this-setSrcCutPosition(0,
    $src_y); $this-setRectangleCut($fill_w, $fill_h); $this-copy_w =
    $this-src_w; $this-copy_h = $this-src_w; } else {
    $this-setSrcCutPosition(0, 0); $this-copy_w = $this-src_w;
    $this-copy_h = $this-src_w; $this-setRectangleCut($fill_w, $fill_h);
    } } else { $this-setSrcCutPosition(0, 0);
    $this-setRectangleCut($this-src_w, $this-src_h); $this-copy_w =
    $this-src_w; $this-copy_h = $this-src_h; } // 目标尺寸 $this-dst_w =
    $this-fill_w + $this-img_border_size*2; $this-dst_h = $this-fill_h
  • $this-img_border_size*2; break; // 手工裁切 case 2: $this-copy_w =
    $this-fill_w; $this-copy_h = $this-fill_h; // 目标尺寸 $this-dst_w =
    $this-fill_w + $this-img_border_size*2; $this-dst_h = $this-fill_h
  • $this-img_border_size*2; break; default: break; } } //
    目标文件起始坐标 $this-start_x = $this-img_border_size;
    $this-start_y = $this-img_border_size; } /** *
    检查水印图是否大于生成后的图片宽高 */ function _isFull() { Return (
    $this-mask_w + $this-mask_offset_x $this-fill_w || $this-mask_h +
    $this-mask_offset_y $this-fill_h) ?true:false; } /** *
    检查水印图是否超过原图 */ function _checkMaskValid() { if(
    $this-mask_w + $this-mask_offset_x $this-src_w || $this-mask_h +
    $this-mask_offset_y $this-src_h) {
    die(水印图片尺寸大于原图,请缩小水印图); } } /** * 取得图片类型 * *
    @param string $file_path 文件路径 */ function
    _getImgType($file_path) { $type_list =
    array(1=gif,2=jpg,3=png,4=swf,5 = psd,6=bmp,15=wbmp);
    if(file_exists($file_path)) { $img_info = @getimagesize
    ($file_path); if(isset($type_list[$img_info[2]])) { Return
    $type_list[$img_info[2]]; } } else {
    die(文件不存在,不能取得文件类型!); } } /** *
    检查图片类型是否合法,调用了array_key_exists函数,此函数要求 *
    php版本大于4.1.0 * * @param string $img_type 文件类型 */ function
    _checkValid($img_type) { if(!array_key_exists($img_type,
    $this-all_type)) { Return false; } } /** * 按指定路径生成目录 * *
    @param string $path 路径 */ function _mkdirs($path) { $adir =
    explode(‘/’,$path); $dirlist = ”; $rootdir = array_shift($adir);
    if(($rootdir!=’.’||$rootdir!=’..’)!file_exists($rootdir)) {
    @mkdir($rootdir); } foreach($adir as $key=$val) {
    if($val!=’.’$val!=’..’) { $dirlist .= /.$val; $dirpath =
    $rootdir.$dirlist; if(!file_exists($dirpath)) { @mkdir($dirpath);
    @chmod($dirpath,0777); } } } } /** * 垂直翻转 * * @param string
    $src 图片源 */ function _flipV($src) { $src_x =
    $this-getImgWidth($src); $src_y = $this-getImgHeight($src); $new_im =
    imagecreatetruecolor($src_x, $src_y); for ($y = 0; $y $src_y; $y++) {
    imagecopy($new_im, $src, 0, $src_y – $y – 1, 0, $y, $src_x, 1); }
    $this-h_src = $new_im; } /** * 水平翻转 * * @param string $src
    图片源 */ function _flipH($src) { $src_x = $this-getImgWidth($src);
    $src_y = $this-getImgHeight($src); $new_im =
    imagecreatetruecolor($src_x, $src_y); for ($x = 0; $x $src_x; $x++) {
    imagecopy($new_im, $src, $src_x – $x – 1, 0, $x, 0, 1, $src_y); }
    $this-h_src = $new_im; }}?

函数描述及例子使用实例: 复制代码
代码如下:< ?php require_once(‘lib/thumb.class.php’); $t = new
ThumbHandler(); $t->setSrcImg; $t->setDstImg; $t->setMaskImg;
$t->setMaskPosition; $t->setMaskImgPct; $t->setDstImgBorder; //
指定缩放比例 $t->createImg; ?> 复制代码 代码如下:setSrcImg;
$t->setMaskWord; $t->setDstImgBorder; // 指定缩放比例
$t->createImg; ?> 复制代码
代码如下:setSrcImg; $t->setMaskWord; // 指定固定宽高
$t->createImg; ?> 复制代码
代码如下:setSrcImg; $t->setDstImg; $t->setMaskWord; //
指定固定宽高 $t->createImg; ?> 复制代码 代码如下:setSrcImg; //
指定字体文件地址 $t->setMaskFont(“c:/winnt/fonts/arial.ttf”);
$t->setMaskFontSize; $t->setMaskFontColor; $t->setMaskWord;
$t->setDstImgBorder; $t->createImg; ?> 复制代码 代码如下:setSrcImg;
$t->setMaskOffsetX; $t->setMaskOffsetY; $t->setMaskPosition;
//$t->setMaskPosition; //$t->setMaskPosition;
//$t->setMaskPosition; $t->setMaskFontColor; $t->setMaskWord;
// 指定固定宽高 $t->createImg; ?> 复制代码 代码如下:setSrcImg;
$t->setMaskFont(“c:/winnt/fonts/simyou.ttf”); $t->setMaskFontSize;
$t->setMaskFontColor; $t->setMaskTxtPct; $t->setDstImgBorder;
$text = “中文”; $str = mb_convert_encoding($text, “UTF-8”, “gb2312”);
$t->setMaskWord; $t->setMaskWord; // 指定固定宽高
$t->createImg; ?>

require_once(‘lib/thumb.class.php’);
$t = new ThumbHandler();
// 基本使用
$t->setSrcImg(“img/test.jpg”);
$t->setMaskWord(“test”);
$t->setDstImgBorder(10,”#dddddd”);
// 指定缩放比例
$t->createImg(50);
?>

下面来看使用方法:

equire_once(‘lib/thumb.class.php’);
$t = new ThumbHandler();
// 基本使用
$t->setSrcImg(“img/test.jpg”);
$t->setMaskWord(“test”);
// 指定固定宽高
$t->createImg(200,200);
?>

require_once(‘lib/ImageHandler.phpcls’);$imgHandler_Obj = new
ImageHandler();

require_once(‘lib/thumb.class.php’);
$t = new ThumbHandler();
$t->setSrcImg(“img/test.jpg”);
$t->setDstImg(“tmp/new_test.jpg”);
$t->setMaskWord(“test”);
// 指定固定宽高
$t->createImg(200,200);
?>

/* 默认缩小放大
*/$imgHandler_Obj-setSrcImg(img/xrk.jpg);$imgHandler_Obj-setDstImg(tmp/New_Image_0.jpg);$imgHandler_Obj-setCutType(0);//
指定缩放比例$imgHandler_Obj-createImg(20);//50 100 200 试试

require_once(‘lib/thumb.class.php’);
$t = new ThumbHandler();
$t->setSrcImg(“img/test.jpg”);
// 指定字体文件地址
$t->setMaskFont(“c:/winnt/fonts/arial.ttf”);
$t->setMaskFontSize(20);
$t->setMaskFontColor(“#ffff00”);
$t->setMaskWord(“test3333333”);
$t->setDstImgBorder(99,”#dddddd”);
$t->createImg(50);
?>

/* 1,
文字水印图片缩小$imgHandler_Obj-setSrcImg(img/xrk.jpg);$imgHandler_Obj-setMaskFont(Fonts/STXINGKA.TTF);$imgHandler_Obj-setMaskFontSize(15);$imgHandler_Obj-setMaskFontColor(#0061A7);$imgHandler_Obj-setMaskTxtPct(20);$imgHandler_Obj-setDstImgBorder(0,#dddddd);$imgHandler_Objext
= Happy漫步者;//$str =
mb_convert_encoding($imgHandler_Objext,UTF-8,GBK);$imgHandler_Obj-setMaskWord($imgHandler_Objext);//
指定固定宽高 输出到浏览器$imgHandler_Obj-createImg(400,400);*/

require_once(‘lib/thumb.class.php’);
$t = new ThumbHandler();
$t->setSrcImg(“img/test.jpg”);
$t->setMaskOffsetX(55);
$t->setMaskOffsetY(55);
$t->setMaskPosition(1);
//$t->setMaskPosition(2);
//$t->setMaskPosition(3);
//$t->setMaskPosition(4);
$t->setMaskFontColor(“#ffff00”);
$t->setMaskWord(“test”);
// 指定固定宽高
$t->createImg(50);
?>

/* 2,
加水印图片缩小$imgHandler_Obj-setSrcImg(img/test.jpg);$imgHandler_Obj-setDstImg(tmp/New_Image_2.jpg);$imgHandler_Obj-setMaskImg(img/t.gif);$imgHandler_Obj-setMaskPosition(0);//0为在图片右下角加入水印
$imgHandler_Obj-setMaskImgPct(60);$imgHandler_Obj-setDstImgBorder(1,#dddddd);//
指定缩放比例$imgHandler_Obj-createImg(400,400);*/

require_once(‘lib/thumb.class.php’);
$t = new ThumbHandler();
$t->setSrcImg(“img/test.jpg”);
$t->setMaskFont(“c:/winnt/fonts/simyou.ttf”);
$t->setMaskFontSize(20);
$t->setMaskFontColor(“#ffffff”);
$t->setMaskTxtPct(20);
$t->setDstImgBorder(10,”#dddddd”);
$text = “中文”;
$str = mb_convert_encoding($text, “UTF-8”, “gb2312”);
$t->setMaskWord($str);
$t->setMaskWord(“test”);
// 指定固定宽高
$t->createImg(50);
?>

/* 3, 同步缩小 $imgHandler_Obj-setSrcImg(img/test.jpg);
$imgHandler_Obj-setCutType(0);//同步缩小
$imgHandler_Obj-setDstImg(tmp/New_Image_3.jpg);
$imgHandler_Obj-createImg(150,160);

*/

/* 4, 剪裁图片$imgHandler_Obj-setSrcImg(img/test.jpg);
$imgHandler_Obj-setCutType(2);//指明为手工裁切
$imgHandler_Obj-setSrcCutPosition(50, 50);// 源图起点坐标
$imgHandler_Obj-setRectangleCut(300, 200);// 裁切尺寸
$imgHandler_Obj-setDstImg(tmp/New_Image_4.jpg);
$imgHandler_Obj-createImg(300,200);*/

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