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This is an advanced waterMarker class for PHP. With this, you can watermark your images with many features. It supports the followings
1. Angle of Text
2. Shadowed Text
3. Smooth Text(Antialiasing), Sharp Text(Non-Antialiasing)
4. Any Image Format, you have no extra overload
5. Any FontSize
6. Any TTF Font
7. Customizable Horizontal and Vertical Spacing between two successive watermark
8. Supports Direct Watermarking over http protocol and also relative or absolute path of image file. I mean if u use this type code http://urdomain.com/imageMarker.php?code=http://anotherdomain/image.jpg it will also work.
This image watermarker is fully commented. Its will really be helpful for many of you.
Thanks
Hasin Hayder
http://hasin.phpxperts.com
ImageMarker.php
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<?
/*****************************************
* class name : watermarker
* developed by : hasin hayder
* date : 050509 10PM (9th may, 2005 , 10 PM)
* dependency : gd library and freetype
* version : 2.00
*****************************************/
class waterMarker
{
var $imagePath; //valid absolute path to image file
var $waterMarkText = "copyrighted"; //the text to draw as watermark
var $signature = "version 1.0"; //just the class file signature
var $font = "arial.ttf"; //font file to use for drawing text. need absolute path
var $size = 10; //font size
var $angle = 45; //angle to draw watermark text
var $hSpacing = 120; //horizontal spacing betweeen two sucessive watermark text
var $vSpacing = 120; //vertical spacing betweeen two sucessive watermark text
var $imageResource; //to store the image resource after completion of watermarking
var $imageType="jpg"; //this could be either of png, jpg, jpeg, bmp, or gif (if gif then output will be in png)
var $shadow = false; //if set to true then a shadow will be drawn under every watermark text
var $antialiased = true; //if set to true then watermark text will be drwan anti aliased. this is recommended
function mark()
{
/****************************************************************
* this function draw the watermark over the image
* parameteres : none
* return value : image resource after completion of watermarking
****************************************************************/
list($width, $height, $type, $attr) = getimagesize($this->imagePath); //get basic properties of the image file
switch ($this->imageType)
{
/************************************************************************
* this portion uses PHP's advanced variable function facility
* and determine generalized function to create and deply images.
* $createProc is a generalized reference of image creation function
* $outputProc is a generalized reference of image deploying functionm
************************************************************************/
case "png":
$createProc = "imagecreatefrompng";
$outputProc = "imagepng";
break;
case "gif";
$createProc = "imagecreatefromgif";
$outputProc = "imagepng";
break;
case "bmp";
$createProc = "imagecreatefrombmp";
$outputProc = "imagebmp";
break;
case "jpeg":
case "jpg":
$createProc = "imagecreatefromjpeg";
$outputProc = "imagejpeg";
break;
}
$im = $createProc($this->imagePath); //create the image with generalized image create function
$grey = imagecolorallocate($im, 180, 180, 180); //color for watermark text
$shadowColor = imagecolorallocate($im, 130, 130, 130); //color for shadow text
if (!$this->antialiased)
/******************************************************************************
* if its need to draw non-antialiased text then just set the color = -1*color
* then the text drawn with this color will be sharp (non-antialiased)
******************************************************************************/
{
$grey *= -1; //grey = grey * -1
$shadowColor *= -1; //shadowColor = shadowColor * -1
}
for ($x=20; $x<$width; $x+=$this->hSpacing)
/*******************************************
* now draw water mark text and shadow text
*******************************************/
{
for ($y=20; $y<$width; $y+=$this->vSpacing)
{
if ($this->shadow) imagettftext($im, $this->size, $this->angle, $x+1, $y+1, $shadowColor, $this->font, $this->waterMarkText); //draw shadow text over image
imagettftext($im, $this->size, $this->angle, $x, $y, $grey, $this->font, $this->waterMarkText); //draw text over image
}
}
$this->imageResource= $outputProc($im); //deploy the image with generalized image deploy function
}
}
?> | |
Ussage
| <?php
include_once("imageMarker.php");
/*******************************************
* usage of this waterMark class
*******************************************/
$imagePath = $_REQUEST['code'];
//echo $imagePath;
$imark = new waterMarker();
$imark->waterMarkText = "bdtemplates";
$imark->imagePath = $imagePath;
$imark->font="arial.ttf";
$imark->size = 14;
$imark->hSpacing=110;
$imark->vSpacing=110;
$imark->shadow=true;
$imark->angle = 45;
header("Content-type: image/jpeg");
$imark->mark(); //draw watermark
//echo $imark->imageResource;
echo $imark->imageResource;
?> | |
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