信呼OA版本v2.3.8

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雨中磐石
2022-08-14 16:47:40 +08:00
parent 4640677d27
commit e3fcd913e3
1405 changed files with 133635 additions and 73 deletions

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<?php
/**
gd2库图片处理添加水印
*/
class imageChajian extends Chajian
{
public $ext; //图片类型
public $img; //图片对象
public $mime; //图片对象
public $path; //图片地址
public $w = 0;
public $h = 0;
public $bool = false;
public $size = 0;
public $whbili = 0;//高和宽的比例
protected function initChajian()
{
$this->bool = function_exists('ImageCreate');
}
/**
创建图片对象$rotate旋转角度
*/
public function createimg($path,$rotate=0)
{
if(!$this->bool)return false;
$this->bool = false;
if(!file_exists($path))return false;
$this->ext = $this->getext($path);
$this->path = $path;
$img = $this->createimgobj($path);
$this->img = $img;
if(!$img)return false;
//判断是否旋转
if($rotate != 0 && $rotate<360 && $rotate>-360){
$white = $this->color('#ffffff',$img);
$img = imagerotate($img, $rotate, $white);//旋转
}
$this->w = imagesx($this->img);
$this->h = imagesy($this->img);
$this->size = ceil(filesize($this->path)/1024);
$this->whbili = $this->w/$this->h;
$this->bool = true;
}
/**
获取图片对象
*/
public function createimgobj($path)
{
$ext = $this->getmime($path);
$img = false;
switch ($ext){
case 'image/gif':
$img=imagecreatefromgif($path);
break;
case 'image/png':
$img=imagecreatefrompng($path);
break;
default:
$img=imagecreatefromjpeg($path);
break;
}
return $img;
}
public function conver($opath, $npath)
{
if(!file_exists($opath))return;
$img = $this->createimgobj($opath);
$this->saveas($npath, $img);
}
/**
获取图片的格式
*/
public function getext($img_name)
{
$type = strtolower(substr($img_name,strrpos($img_name,'.')+1));
return $type;
}
public function getmime($img_name)
{
$mime = '';
if(file_exists($img_name)){
$fileobj = getimagesize($img_name);
$mime = strtolower($fileobj['mime']);
$this->mime = $mime;
}
return $mime;
}
/**
添加文字水印
$str 添加文字
*/
public function addwater($str,$color='#000000',$size=20,$align='rb')
{
if(!$this->bool)return;
$font = '../fonts/FZZHYJW.TTF'; //方正稚艺简体
$lw = strlen($str)*($size/2);
$lh = $size*0.5;
$color = $this->color($color,$this->img);
$x = 2;
$y = 2;
switch($align){
case 'rb'://右下角
$x = $this->w - $lw-2;
$y = $this->h - $lh-2;
break;
case 'tr'://右上角
$x = $this->w - $lw-2;
break;
case 'lb'://左下角
$y = $this->h - $lh-2;
break;
case 'cn'://居中
$x = ($this->w - $lw) * 0.5;
$y = ($this->h - $lh) * 0.5;
break;
}
imagettftext($this->img, $size,0, $x, $y, $color, $font, $str);
$sapath = str_replace('.'.$this->ext.'', '_water.'.$this->ext.'', $this->path);
$sapath = $this->path;
$this->saveas($sapath, $this->img);//另存为
}
/**
添加图片水印
@params $align 图片位置
*/
public function imgwater($imgpath,$align='rb')
{
if(!$this->bool || !file_exists($imgpath))return;
list($lw, $lh) = getimagesize($imgpath);
$logoimg = $this->createimgobj($imgpath);
$x = 2;
$y = 2;
switch($align){
case 'rb'://右下角
$x = $this->w - $lw-2;
$y = $this->h - $lh-2;
break;
case 'tr'://右上角
$x = $this->w - $lw-2;
break;
case 'lb'://左下角
$y = $this->h - $lh-2;
break;
case 'cn'://居中
$x = ($this->w - $lw) * 0.5;
$y = ($this->h - $lh) * 0.5;
break;
}
imagecopymerge($this->img, $logoimg, $x ,$y ,0 ,0 ,$lw ,$lh, 100);
$this->saveas($this->path, $this->img);
}
/**
创建颜色
*/
public function color($color,$img)
{
if(!empty($color)&&(strlen($color)==7)){
$r=hexdec(substr($color,1,2));
$g=hexdec(substr($color,3,2));
$b=hexdec(substr($color,5));
}else{
$r=$g=$b='00';
}
return imagecolorallocate($img, $r, $g, $b);
}
public function colorTorgb($color)
{
if(!empty($color)&&(strlen($color)==7)){
$r=hexdec(substr($color,1,2));
$g=hexdec(substr($color,3,2));
$b=hexdec(substr($color,5));
}else{
$r=$g=$b='00';
}
return array($r, $g, $b);
}
public function colorToHsl($color)
{
$rgba = $this->colorTorgb($color);
$r = floatval($rgba[0])/255;
$g = floatval($rgba[1])/255;
$b = floatval($rgba[2])/255;
$rgb = array($r, $g, $b);
$max = max($rgb);
$min = min($rgb);
$diff = $max - $min;
if ($max == $min) {
$h = 0;
} else if ($max == $r && $g >= $b) {
$h = 60 * (($g - $b) / $diff);
} else if ($max == $r && $g < $b) {
$h = 60 * (($g - $b) / $diff) + 360;
} else if ($max == $g) {
$h = 60 * (($b - $r) / $diff) + 120;
} else if ($max == $b) {
$h = 60 * (($r - $g) / $diff) + 240;
}
$l = ($max + $min) / 2;
if ($l == 0 || $max == $min) {
$s = 0;
} else if (0 < $l && $l <= 0.5) {
$s = $diff / (2 * $l);
} else if ($l > 0.5) {
$s = $diff / (2 - 2 * $l);
}
return array($h, round($s*100,2), round($l*100,2));
}
/**
注销图片
*/
private function destroy()
{
imagedestroy($this->img);
}
/**
另存图片
*/
private function saveas($spath,$img)
{
$ext = $this->getmime($spath);
$this->saveass($ext, $img, $spath);
}
private function saveass($ext,$img, $spath)
{
switch($ext){
case 'image/gif':
imagegif($img,$spath);
break;
case 'image/png':
imagepng($img,$spath);
break;
case 'image/bmp':
imagewbmp($img,$spath);
break;
default:
imagejpeg($img,$spath,80);
break;
}
}
/**
* 压缩图片
*/
public function compress($w,$h)
{
if(!$this->bool)return '';
$bili = 1;
$nh = $h;
$nw = $w;
if($w < $this->w){
$bili = $w / $this->w;
$nh = $bili * $this->h;
}
if($h>0 && $nh > $h){
$bili = $h / $this->h;
$nh = $h;
$nw = $bili * $this->w;
}
if($bili==1)return '';
$yspath = str_replace('.'.$this->ext.'', 'y.'.$this->ext.'', $this->path);
return $this->thumbnail($nw, $nh, 0, $yspath);
}
/**
图片缩略图
@param $w 宽
@param $h 高
*/
public function thumbnail($w,$h,$lx=0, $sapath='')
{
if(!$this->bool)return '';
list($mw, $mh, $bili) = $this->imgwh($w,$h);
$tmpimg = imagecreatetruecolor($w,$h);
imagefill($tmpimg,0,0,$this->color('#ffffff',$tmpimg));
$tx = 0;
$ty = 0;
//开始截的位置
$sx = 0;
$sy = 0;
if($w > $mw){
if($lx==1){//整图缩略可以看到白边
$tx = ($w-$mw)/2;
}else if($lx == 0){//可能去掉看不到的
$mw = $w;
$mh = $mw/$this->whbili;
$nbl= $mh/$this->h;
$sy = ($mh-$h)/2/$nbl; //当前缩放比例
}
}
if($h > $mh){
if($lx==1){
$ty = ($h-$mh)/2;
}else if($lx == 0){
$mh = $h;
$mw = $mh*$this->whbili;
$nbl= $mw/$this->w;
$sx = ($mw-$w)/2/$nbl; //当前缩放比例
}
}
//imagecopyresized
imagecopyresampled($tmpimg, $this->img, $tx,$ty, $sx,$sy, $mw,$mh,$this->w,$this->h);//生成缩略图
//$sapath = str_replace('.'.$this->ext.'', '_thumb'.$w.'x'.$h.'.'.$this->ext.'', $this->path);
if($sapath=='')$sapath = str_replace('.'.$this->ext.'', '_s.'.$this->ext.'', $this->path);
$this->saveass($this->mime ,$tmpimg, $sapath);//保存图片
return $sapath;
}
/**
图片显示宽高
*/
public function imgwh($mw,$mh)
{
$w = $this->w;
$h = $this->h;
$bili=1;
if($w>$mw){
$bili=($mw/$w);
$h=$bili*$h;
$w=$mw;
}
if($h>$mh){
$bili=($mh/$this->h);
$w=$bili*$this->w;
$h=$mh;
}
return array($w,$h,$bili);
}
}