php 图片类
需开启gd
index.php
1 <?php 2 include_once('cutPic.class.php'); 3 $i = new cutPic("1.jpg"); 4 5 $i->cutOutsidePic("cut1.jpg",800,600,1); 6 $i->cutOutsidePic("cut2.jpg",800,600,2); 7 $i->cutOutsidePic("cut3.jpg",800,600,3); 8 9 $i->cutOutsidePic("cut4.jpg",800,600,4); 10 $i->cutOutsidePic("cut5.jpg",800,600,5); 11 $i->cutOutsidePic("cut6.jpg",800,600,6); 12 13 $i->cutOutsidePic("cut7.jpg",800,600,7); 14 $i->cutOutsidePic("cut8.jpg",800,600,8); 15 $i->cutOutsidePic("cut9.jpg",800,600,9); 16 17 //$i->cutInsidePic("cut1.jpg",490,304,1); 18 //$i->cutInsidePic("cut2.jpg",490,304,2); 19 //$i->cutInsidePic("cut3.jpg",490,304,3); 20 // 21 //$i->cutInsidePic("cut4.jpg",490,304,4); 22 //$i->cutInsidePic("cut5.jpg",490,304,5); 23 //$i->cutInsidePic("cut6.jpg",490,304,6); 24 // 25 //$i->cutInsidePic("cut7.jpg",490,304,7); 26 //$i->cutInsidePic("cut8.jpg",490,304,8); 27 //$i->cutInsidePic("cut9.jpg",490,304,9); 28 29 30 //$i->pastePic("1.png",1); 31 //$i->pastePic("1.png",2); 32 //$i->pastePic("1.png",3); 33 // 34 //$i->pastePic("1.png",4); 35 //$i->pastePic("1.png",5); 36 //$i->pastePic("1.png",6); 37 // 38 //$i->pastePic("2.png",7); 39 //$i->pastePic("2.png",8); 40 //$i->pastePic("2.png",9); 41 42 //$i->scalePic("800.jpg", 800, 600); 43 44 /////////////////////////////////////// 45 //$i->cutInsidePic("1024.jpg",1024,768,5); 46 //$i = new cutPic("1024.jpg"); 47 //$i->pastePic("1.png",1); 48 //$i->pastePic("2.png",9); 49 50 ?> 51 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 52 <html xmlns="http://www.w3.org/1999/xhtml"> 53 <head> 54 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 55 <title></title> 56 </head> 57 58 <body> 59 </body> 60 </html>
Pic.class.php
1 <?php 2 3 /*************************** 4 图片操作类 by:Lucky (utf8) 5 Pic.class.php 6 7 2011-4-23 8 ***************************/ 9 10 class Pic{ 11 12 public $fileName; //源图片 13 public $source; //源图片资源 14 public $width; //源图片——宽度 15 public $height; //源图片——高度 16 public $type; //源图片——类型 17 18 function __construct($fileName){ 19 list($this->width, $this->height, $this->type) = getimagesize($fileName); 20 $this->source = $this->createSource($fileName, $this->type); 21 $this->fileName = $fileName; 22 } 23 24 function imagePic($thumb, $target, $t_type){ //生成图片 资源，目标地址，类型【1，2，3，4】 25 switch($t_type){ 26 case 1: 27 imagegif($thumb, $target, 100); 28 break; 29 case 2: 30 imagejpeg($thumb, $target, 100); 31 break; 32 case 3: 33 imagepng($thumb, $target, 100); 34 break; 35 // case 4: 36 // imagebmp($thumb, $target, 100); 37 // break; 38 default: 39 $this->errorfun("生成图片失败"); 40 } 41 } 42 43 function createSource($fileName, $f_type){ //由图像建立资源 源地址，类型【1，2，3，4】 44 switch($f_type){ 45 case 1: 46 $source = imagecreatefromgif($fileName); 47 break; 48 case 2: 49 $source = imagecreatefromjpeg($fileName); 50 break; 51 case 3: 52 $source = imagecreatefrompng($fileName); 53 break; 54 case 4: 55 $source = imagecreatefromwbmp($fileName); 56 break; 57 default: 58 $this->errorfun("建立图片资源失败"); 59 } 60 return $source; 61 } 62 63 function createThumb($width, $height){ //建立空白图像资源 宽，高 64 $thumb=imagecreatetruecolor ($width, $height); //建立图像 65 imagefill($thumb, 0, 0, imagecolorallocate($thumb, 255, 255, 255)); //imagefill填充背景颜色//imagecolorallocate设置背景颜色 默认为黑色 此处设置为白色 66 return $thumb; 67 } 68 69 function errorfun($e='未知错误！'){ 70 $msg='<script language="javascript" type="text/javascript">'; 71 $msg.='alert("'.$e.'");'; 72 // $msg.='history.back();'; 73 $msg.='</script>'; 74 echo $msg; 75 exit; 76 } 77 78 function __destructor(){ 79 $this->fileName = ''; 80 $this->source = ''; 81 $this->width = ''; 82 $this->height = ''; 83 $this->type = ''; 84 } 85 86 } 87 ?>
cutPic.class.php
1 <?php 2 3 /*************************** 4 图片操作类 by:Lucky (utf8) 5 pastePic.class.php 6 7 2011-4-23 8 ***************************/ 9 10 include_once('Pic.class.php'); 11 12 class cutPic extends Pic{ 13 14 public $thumb; //临时资源 15 16 function cutInsidePic($target, $t_width, $t_height, $place='1'){ //截取图片内部 新图片资源 17 // 1 2 3 18 // 4 5 6 19 // 7 8 9 20 $this->thumb = $this->createThumb($t_width, $t_height); 21 switch($place){ 22 case '1': //上左 23 imagecopy($this->thumb,$this->source,0,0,0,0,$this->width,$this->height); 24 break; 25 case '2': //上中 26 imagecopy($this->thumb,$this->source,0,0,($this->width-$t_width)/2,0,$this->width,$this->height); 27 break; 28 case '3': //上右 29 imagecopy($this->thumb,$this->source,0,0,($this->width-$t_width),0,$this->width,$this->height); 30 break; 31 case '4': //中左 32 imagecopy($this->thumb,$this->source,0,($t_height-$this->height)/2,0,0,$this->width,$this->height); 33 break; 34 case '5': //中中 35 imagecopy($this->thumb,$this->source,0,($t_height-$this->height)/2,($this->width-$t_width)/2,0,$this->width,$this->height); 36 break; 37 case '6': //中右 38 imagecopy($this->thumb,$this->source,0,($t_height-$this->height)/2,($this->width-$t_width),0,$this->width,$this->height); 39 break; 40 case '7': //下左 41 imagecopy($this->thumb,$this->source,0,($t_height-$this->height),0,0,$this->width,$this->height); 42 break; 43 case '8': //下中 44 imagecopy($this->thumb,$this->source,0,($t_height-$this->height),($this->width-$t_width)/2,0,$this->width,$this->height); 45 break; 46 case '9': //下右 47 imagecopy($this->thumb,$this->source,0,($t_height-$this->height),($this->width-$t_width),0,$this->width,$this->height); 48 break; 49 default: 50 $this->errorfun("截取图片内部失败"); 51 } 52 $this->imagePic($this->thumb, $target, $this->type); 53 } 54 55 function cutOutsidePic($target, $t_width, $t_height, $place='1'){ //把图片放置新空白图片 目标图, 目标图的宽, 目标图的高 56 // 1 2 3 57 // 4 5 6 58 // 7 8 9 59 $this->thumb = $this->createThumb($t_width, $t_height); 60 switch($place){ 61 case '1': //上左 62 imagecopy($this->thumb,$this->source,0,0,0,0,$this->width,$this->height); 63 break; 64 case '2': //上中 65 imagecopy($this->thumb,$this->source,($t_width-$this->width)/2,0,0,0,$this->width,$this->height); 66 break; 67 case '3': //上右 68 imagecopy($this->thumb,$this->source,($t_width-$this->width),0,0,0,$this->width,$this->height); 69 break; 70 case '4': //中左 71 imagecopy($this->thumb,$this->source,0,($t_height-$this->height)/2,0,0,$this->width,$this->height); 72 break; 73 case '5': //中中 74 imagecopy($this->thumb,$this->source,($t_width-$this->width)/2,($t_height-$this->height)/2,0,0,$this->width,$this->height); 75 break; 76 case '6': //中右 77 imagecopy($this->thumb,$this->source,($t_width-$this->width),($t_height-$this->height)/2,0,0,$this->width,$this->height); 78 break; 79 case '7': //下左 80 imagecopy($this->thumb,$this->source,0,($t_height-$this->height),0,0,$this->width,$this->height); 81 break; 82 case '8': //下中 83 imagecopy($this->thumb,$this->source,($t_width-$this->width)/2,($t_height-$this->height),0,0,$this->width,$this->height); 84 break; 85 case '9': //下右 86 imagecopy($this->thumb,$this->source,($t_width-$this->width),($t_height-$this->height),0,0,$this->width,$this->height); 87 break; 88 default: 89 $this->errorfun("把图片放置新空白图片失败"); 90 } 91 $this->imagePic($this->thumb, $target, $this->type); 92 } 93 94 function pastePic($water, $place='1'){ //把图片放置新图上 95 // 1 2 3 96 // 4 5 6 97 // 7 8 9 98 list($t_width, $t_height, $t_type) = getimagesize($water); 99 $this->thumb = $this->createSource($water, $t_type); 100 switch($place){ 101 case '1': //上左 102 imagecopy($this->source,$this->thumb,0,0,0,0,$t_width,$t_height); 103 break; 104 case '2': //上中 105 imagecopy($this->source,$this->thumb,($this->width-$t_width)/2,0,0,0,$t_width,$t_height); 106 break; 107 case '3': //上右 108 imagecopy($this->source,$this->thumb,($this->width-$t_width),0,0,0,$t_width,$t_height); 109 break; 110 case '4': //中左 111 imagecopy($this->source,$this->thumb,0,($this->height-$t_height)/2,0,0,$t_width,$t_height); 112 break; 113 case '5': //中中 114 imagecopy($this->source,$this->thumb,($this->width-$t_width)/2,($this->height-$t_height)/2,0,0,$t_width,$t_height); 115 break; 116 case '6': //中右 117 imagecopy($this->source,$this->thumb,($this->width-$t_width),($this->height-$t_height)/2,0,0,$t_width,$t_height); 118 break; 119 case '7': //下左 120 imagecopy($this->source,$this->thumb,0,($this->height-$t_height),0,0,$t_width,$t_height); 121 break; 122 case '8': //下中 123 imagecopy($this->source,$this->thumb,($this->width-$t_width)/2,($this->height-$t_height),0,0,$t_width,$t_height); 124 break; 125 case '9': //下右 126 imagecopy($this->source,$this->thumb,($this->width-$t_width),($this->height-$t_height),0,0,$t_width,$t_height); 127 break; 128 default: 129 $this->errorfun("合并图片失败"); 130 } 131 $this->imagePic($this->source, $this->fileName, $this->type); 132 } 133 134 function scalePic($target, $t_width, $t_height){ 135 136 $bili = $this->width/$this->height; 137 $t_bili = $t_width/$t_height; 138 $bgcolor = imagecolorallocate($this->thumb, 255, 255, 255); 139 imagefill($this->thumb,0,0,$bgcolor); 140 141 if($bili > $t_bili){ 142 $this->thumb=imagecreatetruecolor ($t_width,$t_width/$bili); 143 imagecopyresampled($this->thumb,$this->source,0,0,0,0,$t_width,$t_width/$bili,$this->width,$this->height); 144 }elseif($bili < $t_bili){ 145 $this->thumb=imagecreatetruecolor ($t_height*$bili,$t_height); 146 imagecopyresampled($this->thumb,$this->source,0,0,0,0,$t_height*$bili,$t_height,$this->width,$this->height); 147 }else{ 148 $this->thumb=imagecreatetruecolor ($t_width,$t_height); 149 imagecopyresampled($this->thumb,$this->source,0,0,0,0,$t_width,$t_height,$this->width,$this->height); 150 } 151 $this->imagePic($this->thumb, $target, $this->type); 152 153 } 154 155 function __destructor(){ 156 $this->thumb = ''; 157 } 158 159 } 160 ?>
