SetVar("1.jpg","file");
$cm->Distortion("dis_bei.jpg",150,200);
$cm->Prorate("pro_bei.jpg",150,200);
$cm->Cut("cut_bei.jpg",150,200);
$cm->BackFill("fill_bei.jpg",150,200);
***************************************/
class CreatMiniature
{
//公共變量
var $srcFile=""; //原圖
var $echoType; //輸出圖片類型，link–不保存爲文件；file–保存爲文件
var $im=""; //臨時變量
var $srcW=""; //原圖寬
var $srcH=""; //原圖高
//設置變量及初始化
function SetVar($srcFile,$echoType)
{
$this->srcFile=$srcFile;
$this->echoType=$echoType;
$info = "";
$data = GetImageSize($this->srcFile,$info);
switch ($data[2])
{
case 1:
if(!function_exists("imagecreatefromgif")){
/* echo "妳的GD庫不能使用GIF格式的圖片，請使用Jpeg或PNG格式！返回";*/
exit();
}
$this->im = ImageCreateFromGIF($this->srcFile);
break;
case 2:
if(!function_exists("imagecreatefromjpeg")){
/* echo "妳的GD庫不能使用jpeg格式的圖片，請使用其它格式的圖片！返回";*/
exit();
}
$this->im = ImageCreateFromJpeg($this->srcFile);
break;
case 3:
$this->im = ImageCreateFromPNG($this->srcFile);
break;
}
$this->srcW=ImageSX($this->im);
$this->srcH=ImageSY($this->im);
}
//生成扭曲型縮圖
function Distortion($toFile,$toW,$toH)
{
$cImg=$this->CreatImage($this->im,$toW,$toH,0,0,0,0,$this->srcW,$this->srcH);
return $this->EchoImage($cImg,$toFile);
ImageDestroy($cImg);
}
//生成按比例縮放的縮圖
function Prorate($toFile,$toW,$toH)
{
$toWH=$toW/$toH;
$srcWH=$this->srcW/$this->srcH;
if($toWH <= $srcWH)
{
$ftoW=$toW;
$ftoH=$ftoW*($this->srcH/$this->srcW);
}
else
{
$ftoH=$toH;
$ftoW=$ftoH*($this->srcW/$this->srcH);
}
if($this->srcW>$toW||$this->srcH>$toH)
{
$cImg=$this->CreatImage($this->im,$ftoW,$ftoH,0,0,0,0,$this->srcW,$this->srcH);
return $this->EchoImage($cImg,$toFile);
ImageDestroy($cImg);
}
else
{
$cImg=$this->CreatImage($this->im,$this->srcW,$this->srcH,0,0,0,0,$this->srcW,$this->srcH);
return $this->EchoImage($cImg,$toFile);
ImageDestroy($cImg);
}
}
//生成最小裁剪後的縮圖
function Cut($toFile,$toW,$toH)
{
$toWH=$toW/$toH;
$srcWH=$this->srcW/$this->srcH;
if($toWH <= $srcWH)
{
$ctoH=$toH;
$ctoW=$ctoH*($this->srcW/$this->srcH);
}
else
{
$ctoW=$toW;
$ctoH=$ctoW*($this->srcH/$this->srcW);
}
$allImg=$this->CreatImage($this->im,$ctoW,$ctoH,0,0,0,0,$this->srcW,$this->srcH);
$cImg=$this->CreatImage($allImg,$toW,$toH,0,0,($ctoW-$toW)/2,($ctoH-$toH)/2,$toW,$toH);
return $this->EchoImage($cImg,$toFile);
ImageDestroy($cImg);
ImageDestroy($allImg);
}
function BackFill1($toFile,$toW,$toH,$bk1=255,$bk2=255,$bk3=255)
{
if($this->srcW > $toW)
{
$scaleW= $toW / $this->srcW;
$tooH=$this->srcH*$scaleW;
$this->BackFill($toFile,$toW,$tooH,$bk1=255,$bk2=255,$bk3=255);
}
else
{
$this->BackFill($toFile,$this->srcW,$this->srcH,$bk1=255,$bk2=255,$bk3=255);
}
}
//生成背景填充的縮圖
function BackFill($toFile,$toW,$toH,$bk1=255,$bk2=255,$bk3=255)
{
$toWH=$toW/$toH;
$srcWH=$this->srcW/$this->srcH;
if($toWH <= $srcWH)
{
$ftoW=$toW;
$ftoH=$ftoW*($this->srcH/$this->srcW);
}
else
{
$ftoH=$toH;
$ftoW=$ftoH*($this->srcW/$this->srcH);
}
if(function_exists("imagecreatetruecolor"))
{
@$cImg=ImageCreateTrueColor($toW,$toH);
if(!$cImg)
{
$cImg=ImageCreate($toW,$toH);
}
}
else
{
$cImg=ImageCreate($toW,$toH);
}
$backcolor = imagecolorallocate($cImg, $bk1, $bk2, $bk3); //填充的背景顔色
ImageFilledRectangle($cImg,0,0,$toW,$toH,$backcolor);
if($this->srcW>$toW||$this->srcH>$toH)
{
$proImg=$this->CreatImage($this->im,$ftoW,$ftoH,0,0,0,0,$this->srcW,$this->srcH);
//if($ftoW< $toW)
//{
// ImageCopyMerge($cImg,$proImg,($toW-$ftoW)/2,0,0,0,$ftoW,$ftoH,100);
//}
//else if($ftoH<$toH)
//{
// ImageCopyMerge($cImg,$proImg,0,($toH-$ftoH)/2,0,0,$ftoW,$ftoH,100);
//}
if($ftoW <$toW && $ftoH<$toH)
{
ImageCopy($cImg,$proImg,($toW-$ftoW)/2,($toH-$ftoH)/2,0,0,$ftoW,$ftoH);
}
else
{
if($ftoW<$toW)
{
ImageCopy($cImg,$proImg,($toW-$ftoW)/2,0,0,0,$ftoW,$ftoH);
}
else if($ftoH<$toH)
{
ImageCopy($cImg,$proImg,0,($toH-$ftoH)/2,0,0,$ftoW,$ftoH);
}
else
{
ImageCopy($cImg,$proImg,0,0,0,0,$ftoW,$ftoH);
}
}
}
else
{
ImageCopyMerge($cImg,$this->im,($toW-$this->srcW)/2,($toH-$this->srcH)/2,0,0,$this->srcW,$this->srcH,100);
}
return $this->EchoImage($cImg,$toFile);
ImageDestroy($cImg);
}
function BackFill_auto($toFile,$toW,$toH,$bk1=255,$bk2=255,$bk3=255)
{
if($this->srcW<$this->srcH)
{
if($this->srcH>$toH)
{
$toBili=$toH/$this->srcH;
$toFW=$toBili*$this->srcW;
$toFH=$toH;
}
else
{
if($this->srcW>$toW)
{
$toBili=$toW/$this->srcW;
$toFW=$toW;
$toFH=$toBili*$this->srcH;
}
else
{
$toFH=$this->srcH;
$toFW=$this->srcW;
}
}
}
else
{
if($this->srcW>$toW)
{
$toBili=$toW/$this->srcW;
$toFH=$toBili*$this->srcH;
$toFW=$toW;
}
else
{
if($this->srcH>$toH)
{
$toBili=$toH/$this->srcH;
$toFH=$toH;
$toFW=$toBili*$this->srcW;
}
else
{
$toFH=$this->srcH;
$toFW=$this->srcW;
}
}
}
/*$toWH=$toW/$toH;
$srcWH=$this->srcW/$this->srcH;
if($toWH <= $srcWH)
{
$ftoW=$toW;
$ftoH=$ftoW*($this->srcH/$this->srcW);
}
else
{
$ftoH=$toH;
$ftoW=$ftoH*($this->srcW/$this->srcH);
}*/
if(function_exists("imagecreatetruecolor"))
{
@$cImg=ImageCreateTrueColor($toFW,$toFH);
if(!$cImg)
{
$cImg=ImageCreate($toFW,$toFH);
}
}
else
{
$cImg=ImageCreate($toFW,$toFH);
}
$backcolor = imagecolorallocate($cImg, $bk1, $bk2, $bk3); //填充的背景顔色
ImageFilledRectangle($cImg,0,0,$toFW,$toFH,$backcolor);
if($this->srcW>$toFW||$this->srcH>$toFH)
{
$proImg=$this->CreatImage($this->im,$toFW,$toFH,0,0,0,0,$this->srcW,$this->srcH);
ImageCopyMerge($cImg,$proImg,0,0,0,0,$toFW,$toFH,100);
/*
if($ftoW< $toW)
{
ImageCopyMerge($cImg,$proImg,($toW-$ftoW)/2,0,0,0,$ftoW,$ftoH,100);
}
else if($ftoH<$toH)
{
ImageCopyMerge($cImg,$proImg,0,($toH-$ftoH)/2,0,0,$ftoW,$ftoH,100);
}
*/
/* if($ftoW <$toW && $ftoH<$toH)
{
ImageCopy($cImg,$proImg,($toW-$ftoW)/2,($toH-$ftoH)/2,0,0,$ftoW,$ftoH);
}
else
{
if($ftoW<$toW)
{
ImageCopy($cImg,$proImg,($toW-$ftoW)/2,0,0,0,$ftoW,$ftoH);
}
else if($ftoH<$toH)
{
ImageCopy($cImg,$proImg,0,($toH-$ftoH)/2,0,0,$ftoW,$ftoH);
}
else
{
ImageCopy($cImg,$proImg,0,0,0,0,$ftoW,$ftoH);
}
}*/
}
else
{
ImageCopyMerge($cImg,$this->im,($toFW-$this->srcW)/2,($toFH-$this->srcH)/2,0,0,$this->srcW,$this->srcH,100);
}
return $this->EchoImage($cImg,$toFile);
ImageDestroy($cImg);
}
function CreatImage($img,$creatW,$creatH,$dstX,$dstY,$srcX,$srcY,$srcImgW,$srcImgH)
{
if(function_exists("imagecreatetruecolor"))
{
@$creatImg = ImageCreateTrueColor($creatW,$creatH);
if($creatImg)
ImageCopyResampled($creatImg,$img,$dstX,$dstY,$srcX,$srcY,$creatW,$creatH,$srcImgW,$srcImgH);
else
{
$creatImg=ImageCreate($creatW,$creatH);
//ImageCopyResized($creatImg,$img,$dstX,$dstY,$srcX,$srcY,$creatW,$creatH,$srcImgW,$srcImgH);
ImageCopyResampled($creatImg,$img,$dstX,$dstY,$srcX,$srcY,$creatW,$creatH,$srcImgW,$srcImgH);
}
}
else
{
$creatImg=ImageCreate($creatW,$creatH);
//ImageCopyResized($creatImg,$img,$dstX,$dstY,$srcX,$srcY,$creatW,$creatH,$srcImgW,$srcImgH);
ImageCopyResampled($creatImg,$img,$dstX,$dstY,$srcX,$srcY,$creatW,$creatH,$srcImgW,$srcImgH);
}
return $creatImg;
}
//輸出圖片，link—只輸出，不保存文件。file–保存爲文件
function EchoImage($img,$to_File)
{
switch($this->echoType)
{
case "link":
if(function_exists('imagejpeg')) return ImageJpeg($img);
else return ImagePNG($img);
break;
case "file":
if(function_exists('imagejpeg'))return ImageJpeg($img,$to_File,100);
else return ImagePNG($img,$to_File);
break;
}
}
}
?>