<?php /* PHP添加文字水印类 V1.0 作者:Yu Tiedun 邮箱: 修改日期:2010-03-07 支持图片格式:gif, jpg, png 水印的位置自己根据需要调整 如能修改得更好,请发一份给我 */ class WaterPrint { //类开始 public $text, $color, $size, $font, $angle, $px, $py, $im; //要添加的文字 public function GetWpText($text) { $this->text = $text; } //添加文字的颜色 public function GetFtColor($color) { $this->color = $color; } //添加文字的字体 public function GetFtType($font) { $this->font = $font; } //添加文字的大小 public function GetFtSize($size) { $this->size = $size; } //文字旋转的角度 public function GetTtAngle($angle) { $this->angle = $angle; } //添加文字的位置 public function GetTtPosit() { $this->px = 10; $this->py = imagesy($this->im) - 20; } //添加文字水印 public function AddWpText($pict) { $ext = exif_imagetype($pict); switch ($ext) { case 1: $picext = "gif"; $this->im = imagecreatefromgif($pict); break; case 2: $picext = "jpg"; $this->im = imagecreatefromjpeg($pict); break; case 3: $picext = "png"; $this->im = imagecreatefrompng($pict); break; default: $this->Errmsg("不支持的文件格式!"); break; } //$this->picext = $picext; $this->GetTtPosit(); $im = $this->im; $size = $this->size; $angle= $this->angle; $px = $this->px; $py = $this->py; $color= $this->color; $font = $this->font; $text = $this->text; $color= imagecolorallocate($im, 255, 0, 0); imagettftext($im, $size, $angle, $px, $py, $color, $font, $text); switch ($picext) { case "gif": imagegif($im, $pict); break; case "jpg": imagejpeg($im, $pict, 100); break; case "png": imagealphablending($im, false); imagesavealpha($im, true); imagepng($im, $pict); break; } imagedestroy($im); } //错误信息提示 public function Errmsg($msg) { echo "<script language='javascript'>alert('".$msg."');</script>"; } //类结束 } ?>
调用页面:index.php代码如下:
<?php header("Content-type: text/html; charset=gbk"); require("wptext_class.php"); $pict = "images/button2.png"; //目标图片 //$text = "XP/Vista/Win7"; //要添加的文字 $text = "文字水印测试"; $text = iconv("gb2312","utf-8",$text); //防止中文乱码 $size = 20; //文字大小 $font = "c:/windows/fonts/arial.ttf"; //字体 $angle = 0; //旋转角度,逆时针 $wptext = new WaterPrint(); $wptext->GetWpText($text); $wptext->GetFtSize($size); $wptext->GetFtType($font); $wptext->GetTtAngle($angle); $wptext->AddWpText($pict); $wptext = null; ?> <a href="images/button2.png" target="_blank">查看结果</a>
希望本文所述对大家的ThinkPHP框架程序设计有所帮助。