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php给图片加水印四-网络编程

来源:[db:来源]标题:   水印    编辑:电脑技术全能网 时间:2019-09-18 18:01

原标题:php给图片加水印四-网络编程
   <?/** * 天生水印,挪用了天生水印笔墨和水印图片两个方式 */ function _createMask() { if($this->mask_word) { // 猎取字体信息 $this->_setFontInfo(); if($this->_isFull()) { die("水印笔墨过大"); } else { $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h); $white = ImageColorAllocate($this->h_dst,255,255,255); imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);// 添补配景色 $this->_drawBorder(); imagecopyresampled( $this->h_dst, $this->h_src, $this->start_x, $this->start_y, $this->src_x, $this->src_y, $this->fill_w, $this->fill_h, $this->copy_w, $this->copy_h); $this->_createMaskWord($this->h_dst); } } if($this->mask_img) { $this->_loadMaskImg();//加载时,获得宽高 if($this->_isFull()) { // 将水印天生在原图上再拷 $this->_createMaskImg($this->h_src); $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h); $white = ImageColorAllocate($this->h_dst,255,255,255); imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);// 添补配景色 $this->_drawBorder(); imagecopyresampled( $this->h_dst, $this->h_src, $this->start_x, $this->start_y, $this->src_x, $this->src_y, $this->fill_w, $this->fill_h, $this->copy_w, $this->copy_h); } else { // 创立新图并拷贝 $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h); $white = ImageColorAllocate($this->h_dst,255,255,255); imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);// 添补配景色 $this->_drawBorder(); imagecopyresampled( $this->h_dst, $this->h_src, $this->start_x, $this->start_y, $this->src_x, $this->src_y, $this->fill_w, $this->fill_h, $this->copy_w, $this->copy_h); $this->_createMaskImg($this->h_dst); } } if(empty($this->mask_word) && empty($this->mask_img)) { $this->h_dst = imagecreatetruecolor($this->dst_w, $this->dst_h); $white = ImageColorAllocate($this->h_dst,255,255,255); imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$white);// 添补配景色 $this->_drawBorder(); imagecopyresampled( $this->h_dst, $this->h_src, $this->start_x, $this->start_y, $this->src_x, $this->src_y, $this->fill_w, $this->fill_h, $this->copy_w, $this->copy_h); } } /** * 画边框 */ function _drawBorder() { if(!empty($this->img_border_size)) { $c = $this->_parseColor($this->img_border_color); $color = ImageColorAllocate($this->h_src,$c[0], $c[1], $c[2]); imagefilledrectangle($this->h_dst,0,0,$this->dst_w,$this->dst_h,$color);// 添补配景色 } } /** * 天生水印笔墨 */ function _createMaskWord($src) { $this->_countMaskPos(); $this->_checkMaskValid(); $c = $this->_parseColor($this->mask_font_color); $color = imagecolorallocatealpha($src, $c[0], $c[1], $c[2], $this->mask_txt_pct); if(is_numeric($this->font)) { imagestring($src, $this->font, $this->mask_pos_x, $this->mask_pos_y, $this->mask_word, $color); } else { imagettftext($src, $this->font_size, 0, $this->mask_pos_x, $this->mask_pos_y, $color, $this->font, $this->mask_word); } } /** * 天生水印图 */ function _createMaskImg($src) { $this->_countMaskPos(); $this->_checkMaskValid(); imagecopymerge($src, $this->h_mask, $this->mask_pos_x ,$this->mask_pos_y, 0, 0, $this->mask_w, $this->mask_h, $this->mask_img_pct); imagedestroy($this->h_mask); } /** * 加载水印图 */ function _loadMaskImg() { $mask_type = $this->_getImgType($this->mask_img); $this->_checkValid($mask_type); // file_get_contents函数请求php版本>4.3.0 $src = ''; if(function_exists("file_get_contents")) { $src = file_get_contents($this->mask_img); } else { $handle = fopen ($this->mask_img, "r"); while (!feof ($handle)) { $src .= fgets($fd, 4096); } fclose ($handle); } if(empty($this->mask_img)) { die("水印图片为空"); } $this->h_mask = ImageCreateFromString($src); $this->mask_w = $this->getImgWidth($this->h_mask); $this->mask_h = $this->getImgHeight($this->h_mask); } /** * 图片输入 */ function _output() { $img_type = $this->img_type; $func_name = $this->all_type[$img_type]['output']; if(function_exists($func_name)) { // 推断扫瞄器,如果IE就不发送头 if(isset($_SERVER['HTTP_USER_AGENT'])) { $ua = strtoupper($_SERVER['HTTP_USER_AGENT']); if(!preg_match('/^.*MSIE.*/)$/i',$ua)) { header("Content-type:$img_type"); } } $func_name($this->h_dst, $this->dst_img, $this->img_display_quality); } else { Return false; } } /** * 剖析色彩 * * @param string $color 十六进制色彩 */ function _parseColor($color) { $arr = array(); for($ii=1; $ii<strlen ($color); $ii++) { $arr[] = hexdec(substr($color,$ii,2)); $ii++; } Return $arr; } /** * 盘算出地位坐标 */?>

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