<?php
/**
* This class writes some text over a image
*
* @author Rochak Chauhan
*/
class TestOnImage {
var $text = "Rochak Chauhan";
var $backgroundImage = 'bg.jpg';
var $alphabetDir = 'alphabets';
var $imageResource = '';
var $text_X = 0;
var $text_Y = 0;
/**
* Contructor function
*
* @param string $string
* @param int $text_X
* @param int $text_Y
* @param string $backgroundImage
* @param string $alphabetDir
*
* @return object
*/
function TestOnImage($string, $text_X = 0, $text_Y = 0, $backgroundImage = '', $alphabetDir = '') {
$text_X = (int) $text_X;
$text_Y = (int) $text_Y;
if ($text_X < 0 || $text_X > 999) {
trigger_error('Please enter a numeric value for Y coordinate between 0 - 999. You entered: '.$text_X, E_USER_ERROR);
exit;
}
else {
$this->text_X = $text_X;
}
if ($text_Y < 0 || $text_Y > 999) {
trigger_error('Please enter a numeric value for the Y coordinate between 0 - 999. You entered: '.$text_Y, E_USER_ERROR);
exit;
}
else {
$this->text_Y = $text_Y;
}
if(trim($backgroundImage) != '') {
$this->backgroundImage = $backgroundImage;
}
if(trim($alphabetDir) != '') {
$this->alphabetDir = $alphabetDir;
}
if(trim($string) != '') {
$this->text = $string;
$this->createImage();
}
}
/**
* Function to create image from text
*
*/
function createImage() {
$letterArray = array();
for ($i=0; $i < strlen($this->text); $i++) {
$var = strtolower($this->text[$i]);
if ($var == ' ') {
$var = $this->alphabetDir.DIRECTORY_SEPARATOR."space.gif";
}
elseif ($var == '.') {
$var = $this->alphabetDir.DIRECTORY_SEPARATOR."dot.gif";
}
else {
$var = $this->alphabetDir.DIRECTORY_SEPARATOR."$var.gif";
}
$letterArray[] = $var;
}
$imgArray = getimagesize($this->backgroundImage);
switch ($imgArray['mime']) {
case 'image/gif':
$this->imageResource = imagecreatefromgif($this->backgroundImage);
break;
case 'image/jpeg';
$this->imageResource = imageCreateFromJPEG($this->backgroundImage);
break;
case 'image/png';
$this->imageResource = imagecreatefrompng($this->backgroundImage);
break;
default:
die("Unsupported image type: ".$this->backgroundImage);
}
$y = 0;
for ($i=0; $i<count($letterArray); $i++) {
$s[$i] = imagecreatefromgif($letterArray[$i]);
imagecopymerge($this->imageResource, $s[$i], ($this->text_X+$y), $this->text_Y, 0, 0, 20, 30, 100);
$y = $y+20;
}
}
/**
* Function to display the images (FIREFOX)
*
*/
function displayImage($fileName = '') {
if(trim($fileName == '')) {
header("Content-type: image/jpg");
imagejpeg($this->imageResource);
}
else {
imagejpeg($this->imageResource, $fileName);
}
}
/**
* Function to display the images (INTERNET EXPLORER)
*
*/
function displayImageIE() {
imagejpeg($this->imageResource, 'image.jpg');
echo '<img src="image.jpg" />';
}
}
?>
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