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, $bk3); //填充的背景颜色
ImageFilledRectangle($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<$toW)
{
ImageCopy($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-$ftoW)/2,($toH-$ftoH)/2,0,0,$ftoW,$ftoH,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);
}
}
else
{
$creatImg=ImageCreate($creatW,$creatH);
ImageCopyResized($creatImg,$img,$dstX,$dstY,$srcX,$srcY,$creatW,$creatH,$srcImgW,$srcImgH);
}
return $creatImg;
}
//输出图片，link---只输出，不保存文件。file--保存为文件
function EchoImage($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);
else return ImagePNG($img,$to_File);
break;
}
}
}
?>