PHP画像処理類:サポート(サムネイル、裁断、フィレット、チルト)
6916 ワード
<?
/*
: , , ,
*/
class resizeimage
{
//
var $type;
//
var $width;
//
var $height;
//
var $resize_width;
//
var $resize_height;
//
var $cut;
//
var $srcimg;
//
var $dstimg;
//
var $corner;
var $im;
function resizeimage($img, $corner, $wid, $hei,$c, $corner_radius, $angle)
{
$this->srcimg = $img;
$this->corner = $corner;
$this->resize_width = $wid;
$this->resize_height = $hei;
$this->cut = $c;
$this->corner_radius = $corner_radius;
$this->angle = $angle;
//
$this->type = substr(strrchr($this->srcimg,"."),1);
//
$this->initi_img();
//
$this -> dst_img();
//--
$this->width = imagesx($this->im);
$this->height = imagesy($this->im);
//
$this->newimg();
ImageDestroy ($this->im);
}
function newimg()
{
//
$resize_ratio = ($this->resize_width)/($this->resize_height);
//
$ratio = ($this->width)/($this->height);
if(($this->cut)=="1")
//
{
if($ratio>=$resize_ratio)
//
{
$newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width,$this->resize_height, (($this->height)*$resize_ratio), $this->height);
$tmp = $this->rounded_corner($newimg,$this->resize_width);
imagepng ($tmp,$this->dstimg);
}
if($ratio<$resize_ratio)
//
{
$newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, $this->resize_height, $this->width, (($this->width)/$resize_ratio));
$tmp = $this->rounded_corner($newimg);
imagepng ($tmp,$this->dstimg);
}
}
else
//
{
if($ratio>=$resize_ratio)
{
$newimg = imagecreatetruecolor($this->resize_width,($this->resize_width)/$ratio);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, ($this->resize_width)/$ratio, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
if($ratio<$resize_ratio)
{
$newimg = imagecreatetruecolor(($this->resize_height)*$ratio,$this->resize_height);
imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, ($this->resize_height)*$ratio, $this->resize_height, $this->width, $this->height);
ImageJpeg ($newimg,$this->dstimg);
}
}
}
//
function initi_img()
{
if($this->type=="jpg")
{
$this->im = imagecreatefromjpeg($this->srcimg);
}
if($this->type=="gif")
{
$this->im = imagecreatefromgif($this->srcimg);
}
if($this->type=="png")
{
$this->im = imagecreatefrompng($this->srcimg);
}
}
//
function rounded_corner($image,$size)
{
$topleft = true;
$bottomleft = true;
$bottomright = true;
$topright = true;
$corner_source = imagecreatefrompng('rounded_corner.png');
$corner_width = imagesx($corner_source);
$corner_height = imagesy($corner_source);
$corner_resized = ImageCreateTrueColor($this->corner_radius, $this->corner_radius);
ImageCopyResampled($corner_resized, $corner_source, 0, 0, 0, 0, $this->corner_radius, $this->corner_radius, $corner_width, $corner_height);
$corner_width = imagesx($corner_resized);
$corner_height = imagesy($corner_resized);
$white = ImageColorAllocate($image,255,255,255);
$black = ImageColorAllocate($image,0,0,0);
//
if ($topleft == true) {
$dest_x = 0;
$dest_y = 0;
imagecolortransparent($corner_resized, $black);
imagecopymerge($image, $corner_resized, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//
if ($bottomleft == true) {
$dest_x = 0;
$dest_y = $size - $corner_height;
$rotated = imagerotate($corner_resized, 90, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//
if ($bottomright == true) {
$dest_x = $size - $corner_width;
$dest_y = $size - $corner_height;
$rotated = imagerotate($corner_resized, 180, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
//
if ($topright == true) {
$dest_x = $size - $corner_width;
$dest_y = 0;
$rotated = imagerotate($corner_resized, 270, 0);
imagecolortransparent($rotated, $black);
imagecopymerge($image, $rotated, $dest_x, $dest_y, 0, 0, $corner_width, $corner_height, 100);
}
$image = imagerotate($image, $this->angle, $white);
return $image;
}
//
function dst_img()
{
$full_length = strlen($this->srcimg);
$type_length = strlen($this->type);
$name_length = $full_length-$type_length;
$name = substr($this->srcimg,0,$name_length-1);
$this->dstimg = $name."_small.png";
}
}
//resizeimage(" ", " ", " ", " ", " ", " ");
$img_file = 'Sunset.jpg';
$corner = 'rounded_corner.png';
$resizeimage = new resizeimage($img_file, $corner, "80", "80", "1", "6", "0");
?>
<img src="Sunset_small.png" border="0">