www.gusucode.com > （自适应手机版）html5响应式影视文化公司源码 传播传媒企业通用类织梦模板（demo223） > （自适应手机版）html5响应式影视文化公司源码 传播传媒企业通用类织梦模板（demo223）/www2/include/helpers/image.helper.php
<?php if(!defined('DEDEINC')) exit("Request Error!");
/**
* 图像处理相关函数
*
* @version $Id: image.func.php 1 15:59 2010年7月5日Z tianya $
* @package DedeCMS.Helpers
* @copyright Copyright (c) 2007 - 2010, DesDev, Inc.
* @license http://help.dedecms.com/usersguide/license.html
* @link http://www.dedecms.com
*/
// ------------------------------------------------------------------------
/**
* 缩图片自动生成函数，来源支持bmp、gif、jpg、png
* 但生成的小图只用jpg或png格式
*
* @access public
* @param string $srcFile 图片路径
* @param string $toW 转换到的宽度
* @param string $toH 转换到的高度
* @param string $toFile 输出文件到
* @return string
*/
if ( ! function_exists('ImageResize'))
{
function ImageResize($srcFile, $toW, $toH, $toFile="")
{
global $cfg_photo_type;
if($toFile=='') $toFile = $srcFile;
$info = '';
$srcInfo = GetImageSize($srcFile,$info);
switch ($srcInfo[2])
{
case 1:
if(!$cfg_photo_type['gif']) return FALSE;
$im = imagecreatefromgif($srcFile);
break;
case 2:
if(!$cfg_photo_type['jpeg']) return FALSE;
$im = imagecreatefromjpeg($srcFile);
break;
case 3:
if(!$cfg_photo_type['png']) return FALSE;
$im = imagecreatefrompng($srcFile);
break;
case 6:
if(!$cfg_photo_type['bmp']) return FALSE;
$im = imagecreatefromwbmp($srcFile);
break;
}
$srcW=ImageSX($im);
$srcH=ImageSY($im);
if($srcW<=$toW && $srcH<=$toH ) return TRUE;
$toWH=$toW/$toH;
$srcWH=$srcW/$srcH;
if($toWH<=$srcWH)
{
$ftoW=$toW;
$ftoH=$ftoW*($srcH/$srcW);
}
else
{
$ftoH=$toH;
$ftoW=$ftoH*($srcW/$srcH);
}
if($srcW>$toW||$srcH>$toH)
{
if(function_exists("imagecreateTRUEcolor"))
{
@$ni = imagecreateTRUEcolor($ftoW,$ftoH);
if($ni)
{
imagecopyresampled($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
}
else
{
$ni=imagecreate($ftoW,$ftoH);
imagecopyresized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
}
}
else
{
$ni=imagecreate($ftoW,$ftoH);
imagecopyresized($ni,$im,0,0,0,0,$ftoW,$ftoH,$srcW,$srcH);
}
switch ($srcInfo[2])
{
case 1:
imagegif($ni,$toFile);
break;
case 2:
imagejpeg($ni,$toFile,85);
break;
case 3:
imagepng($ni,$toFile);
break;
case 6:
imagebmp($ni,$toFile);
break;
default:
return FALSE;
}
imagedestroy($ni);
}
imagedestroy($im);
return TRUE;
}
}
/**
* 获得GD的版本
*
* @access public
* @return int
*/
if ( ! function_exists('gdversion'))
{
function gdversion()
{
//没启用php.ini函数的情况下如果有GD默认视作2.0以上版本
if(!function_exists('phpinfo'))
{
if(function_exists('imagecreate'))
{
return '2.0';
}
else
{
return 0;
}
}
else
{
ob_start();
phpinfo(8);
$module_info = ob_get_contents();
ob_end_clean();
if(preg_match("/\bgd\s+version\b[^\d\n\r]+?([\d\.]+)/i", $module_info,$matches))
{
$gdversion_h = $matches[1];
}
else
{
$gdversion_h = 0;
}
return $gdversion_h;
}
}
}
/**
* 图片自动加水印函数
*
* @access public
* @param string $srcFile 图片源文件
* @param string $fromGo 位置
* @return string
*/
if ( ! function_exists('WaterImg'))
{
function WaterImg($srcFile, $fromGo='up')
{
include(DEDEDATA.'/mark/inc_photowatermark_config.php');
require_once(DEDEINC.'/image.class.php');
if( isset($GLOBALS['needwatermark']) )
{
$photo_markup = $photo_markdown = empty($GLOBALS['needwatermark']) ? '0' : '1';
}
if($photo_markup != '1' || ($fromGo=='collect' && $photo_markdown!='1') )
{
return;
}
$info = '';
$srcInfo = @getimagesize($srcFile,$info);
$srcFile_w = $srcInfo[0];
$srcFile_h = $srcInfo[1];
if($srcFile_w < $photo_wwidth || $srcFile_h < $photo_wheight)
{
return;
}
if($fromGo=='up' && $photo_markup=='0')
{
return;
}
if($fromGo=='down' && $photo_markdown=='0')
{
return;
}
$TRUEMarkimg = DEDEDATA.'/mark/'.$photo_markimg;
if(!file_exists($TRUEMarkimg) || empty($photo_markimg))
{
$TRUEMarkimg = "";
}
if($photo_waterpos == 0)
{
$photo_waterpos = rand(1, 9);
}
$cfg_watermarktext = array();
if($photo_marktype == '2')
{
if(file_exists(DEDEDATA.'/mark/simhei.ttf'))
{
$cfg_watermarktext['fontpath'] = DEDEDATA.'/mark/simhei.ttf';
}
else
{
return ;
}
}
$cfg_watermarktext['text'] = $photo_watertext;
$cfg_watermarktext['size'] = $photo_fontsize;
$cfg_watermarktext['angle'] = '0';
$cfg_watermarktext['color'] = '255,255,255';
$cfg_watermarktext['shadowx'] = '0';
$cfg_watermarktext['shadowy'] = '0';
$cfg_watermarktext['shadowcolor'] = '0,0,0';
$photo_marktrans = 85;
$img = new image($srcFile,0, $cfg_watermarktext, $photo_waterpos, $photo_diaphaneity, $photo_wheight, $photo_wwidth, $photo_marktype, $photo_marktrans,$TRUEMarkimg);
$img->watermark(0);
}
}
/**
* 会对空白地方填充满
*
* @access public
* @param string $srcFile 图片路径
* @param string $toW 转换到的宽度
* @param string $toH 转换到的高度
* @param string $toFile 输出文件到
* @param string $issave 是否保存
* @return bool
*/
if ( ! function_exists('ImageResizeNew'))
{
function ImageResizeNew($srcFile, $toW, $toH, $toFile='', $issave=TRUE)
{
global $cfg_photo_type, $cfg_ddimg_bgcolor;
if($toFile=='') $toFile = $srcFile;
$info = '';
$srcInfo = GetImageSize($srcFile,$info);
switch ($srcInfo[2])
{
case 1:
if(!$cfg_photo_type['gif']) return FALSE;
$img = imagecreatefromgif($srcFile);
break;
case 2:
if(!$cfg_photo_type['jpeg']) return FALSE;
$img = imagecreatefromjpeg($srcFile);
break;
case 3:
if(!$cfg_photo_type['png']) return FALSE;
$img = imagecreatefrompng($srcFile);
break;
case 6:
if(!$cfg_photo_type['bmp']) return FALSE;
$img = imagecreatefromwbmp($srcFile);
break;
}
$width = imageSX($img);
$height = imageSY($img);
if (!$width || !$height) {
return FALSE;
}
$target_width = $toW;
$target_height = $toH;
$target_ratio = $target_width / $target_height;
$img_ratio = $width / $height;
if ($target_ratio > $img_ratio) {
$new_height = $target_height;
$new_width = $img_ratio * $target_height;
} else {
$new_height = $target_width / $img_ratio;
$new_width = $target_width;
}
if ($new_height > $target_height) {
$new_height = $target_height;
}
if ($new_width > $target_width) {
$new_height = $target_width;
}
$new_img = ImageCreateTrueColor($target_width, $target_height);
if($cfg_ddimg_bgcolor==0) $bgcolor = ImageColorAllocate($new_img, 0xff, 0xff, 0xff);
else $bgcolor = 0;
if (!@imagefilledrectangle($new_img, 0, 0, $target_width-1, $target_height-1, $bgcolor))
{
return FALSE;
}
if (!@imagecopyresampled($new_img, $img, ($target_width-$new_width)/2, ($target_height-$new_height)/2, 0, 0, $new_width, $new_height, $width, $height))
{
return FALSE;
}
//保存为目标文件
if($issave)
{
switch ($srcInfo[2])
{
case 1:
imagegif($new_img, $toFile);
break;
case 2:
imagejpeg($new_img, $toFile,100);
break;
case 3:
imagepng($new_img, $toFile);
break;
case 6:
imagebmp($new_img, $toFile);
break;
default:
return FALSE;
}
}
//不保存
else
{
switch ($srcInfo[2])
{
case 1:
imagegif($new_img);
break;
case 2:
imagejpeg($new_img);
break;
case 3:
imagepng($new_img);
break;
case 6:
imagebmp($new_img);
break;
default:
return FALSE;
}
}
imagedestroy($new_img);
imagedestroy($img);
return TRUE;
}
}