[PHP] imageBox V1 (Text,Rotate,Watermak,Resize)

**litewarez** · 29th Nov 2009, 01:52 PM

Heya all, Ive created a Image Editing class to help you edit pictures via PHP

Some of the features include

Add Text (Add strings of text on the image)
Rotate Image (Rotate the image with degrees such as 180 and 75 Degrees)
Watermarking (Simply add a water wark by telling the class what watermark file to use)
Resize (Scale down an image to any Dimenstions)
Output to browser (Send your image and all your changes to the browser)
Output to file (Using the saveAs method you can easily export your changed images to your server)

Heres some examples

Resize to browser

PHP Code:


<?php
    include 'imageBox.class.php';

    $Image = new imageBox("path/to/file.png");
    $Image->resize(640,480)->toBrowser();
?>

Resize & Rotate to browser

PHP Code:


<?php
    include 'imageBox.class.php';

    $Image = new imageBox("path/to/file.png");
    $Image->resize(640,480)->rotate(75)->toBrowser();
?>

Resize to file

PHP Code:


<?php
    include 'imageBox.class.php';

    $Image = new imageBox("path/to/file.png");
    $Image->resize(640,480)->rotate(75)->saveAs("save/as/image.png");

    //Note: you change the extention when saving
    //$Image->resize(640,480)->rotate(75)->saveAs("save/as/image.gif");
    //$Image->resize(640,480)->rotate(75)->saveAs("save/as/image.jpg");
?>

The whole works

PHP Code:


<?php
    include 'imageBox.class.php';

    $Image = new imageBox("path/to/file.png");
    $Image
        ->resize(320,320)
        ->text("Hello World!","FFF",10,40,40)
        ->watermark("images/myWatermark.png","br")
        ->saveAs(dirname(__FILE__).'/images/the_file.png',75)
        ->toBrowser('jpg',100);
        //This is saving the file and then outputting it to the browser
        //Note: when saving as jpg you can set the 2nd parameter for quality 0-100% 
?>

Heres the core class file

PHP Code:


<?php
class imageBox{
    
    /*Private*/
    private $mainFile,$mainImage,$mainInfo;
    
    /*
    *** Constructor (Takes a local filename)
    */
    function __construct($file){
        $this->mainFile = $file;
        //Check to see if file exists
        if(!file_exists($this->mainFile)){
            trigger_error("Image does not exists (".basename($this->mainFile).")",E_USER_ERROR);
        }
        
        //Other wise lets gather some info
        $this->mainInfo = $this->_gatherFileInfo($this->mainFile);
        
        //Now we have to create a new image object
        $this->mainImage = $this->_createNewImage($this->mainFile);
    }
    
    /*
    *    Public
    *    Note: All public methods should return $this unless there output methods / final methods
    **/
    
    public function text($text,$color = '000000',$size = 5,$x = 0, $y = 0){
        $rgb = $this->html2rgb($color);
        imagestring($this->mainImage, $size, $x, $y, $text, imagecolorallocate($this->mainImage,$rgb[0],$rgb[1],$rgb[2]));
        //Return the context
        return $this;
    }
    
    public function rotate($degree, $color = 'FFFFFF'){
        //Get hex for colour code
        $rgb = $this->html2rgb($color);
        
        //Chgeck the degree is in range
        $degree = (($degree > 0 && $degree < 360) ? $degree : 180);
        
        //rotate the image accordingly
        $this->mainImage = imagerotate($this->mainImage,$degree,imagecolorallocate($this->mainImage,$rgb[0],$rgb[1],$rgb[2]));
        
        //Update the mainImage Dx
        $this->mainInfo->width    = imagesx($this->mainImage);
        $this->mainInfo->height    = imagesy($this->mainImage);
        
        //Return the context
        return $this;
    }

    public function watermark($file,$position = 'bottomright'){
        (    /*Check and create watermark from file*/
            file_exists($file)
            ?    $this->watermark = $this->_createNewImage($file)
            :    trigger_error("imageBox:: Unable to open watermark file (".basename($file).")",E_USER_ERROR)
        );
        //Get watermark sizes
        $this->watermark_info = $this->_gatherFileInfo($file);
        
        //Set the hieghts
        
        //Lets get the posstion of the where we want to place the watermark
        switch($position){
            case 'topleft':case 'tl':
                $this->watermark_pos_x = 3;
                $this->watermark_pos_y = 3;
            break;
            case 'topright':case 'tr':
                $this->watermark_pos_x = ($this->mainInfo->width - $this->watermark_info->width)-3;
                $this->watermark_pos_y = 3;
                break;
            case 'bottomleft':case 'bl':
                $this->watermark_pos_x = -3;
                $this->watermark_pos_y = ($this->mainInfo->height - $this->watermark_info->height)-3;
            break;
            case 'bottomright':case 'br':
                $this->watermark_pos_x = ($this->mainInfo->width    - $this->watermark_info->width)-3;
                $this->watermark_pos_y = ($this->mainInfo->height    - $this->watermark_info->height)-3;
            break;
            default:
                $this->watermark_pos_x = 0;
                $this->watermark_pos_y = ($this->mainInfo->height - $this->watermark_info->height)-3;
            break;
        }
        
        //Add the watermarked image to the mainImage
        imagecopy(
            $this->mainImage,
            $this->watermark,
            $this->watermark_pos_x,
            $this->watermark_pos_y,
            0,0,
            $this->watermark_info->width,
            $this->watermark_info->height
        );
        imagedestroy($this->watermark);
        
        //Return the context
        return $this;
    }

    public function resize($width = 640,$height = 480){
        
        //Setup scale
        $scale = min(
                     $width/$this->mainInfo->width,
                     $height/$this->mainInfo->height
                );
                
        if ($scale == 1){
            return $this; // no need to change
        }

        $new_width    =    ($this->mainInfo->width * $scale);
        $new_height    =    ($this->mainInfo->height * $scale);
        $xpos        =    (($width - $new_width) / 2);
           $ypos        =    (($height - $new_height) / 2);
        
        //Create a copy of the current image for changeover
        $this->imageBackup    = $this->mainImage;
        
        //Make new image with the Dx passed
        $this->mainImage    = imagecreatetruecolor($new_width,$new_height);
        
        //Create plain background
        $this->plain_bg = imagecolorallocate($this->mainImage,255,255,255);
        
        //Add the plain Background
        imagefilledrectangle($this->mainImage,0,0,$width,$height,$this->plain_bg);
        
        //Copy the main image to the newly sized image
        imagecopyresampled(
            $this->mainImage,$this->imageBackup,0,0,0,0,$new_width,$new_height,
            $this->mainInfo->width,$this->mainInfo->height
        );
        
        //Delete the old image
        imagedestroy($this->imageBackup);
        
        //Update the Dx for the mainImage
        $this->info->width  = $width;
        $this->info->height = $height;
        
        //Return the main object for streamlining
        return $this;
    }
    
    public function toBrowser($outputType = 'jpg',$quality = 100){
        //Send the file to browser and EXIT
        switch($outputType){
            case "gif":
                header('Content-type: image/gif');
                imagegif($this->mainImage,NULL);
                exit;
            break;
            case "png":
                header('Content-type: image/png');
                imagepng($this->mainImage,NULL);
            break;
            case "jpg":case "jpeg":
                header('Content-type: image/jpeg');
                imagejpeg($this->mainImage,NULL, (int)$quality);
                exit;
            break;
            default:
                trigger_error("imageBox:: Unaable to output to browser, check output ext (".$outputType.")",E_USER_ERROR);
            break;
        }
    }
    
    public function saveAs($location,$quality = 100){
        $info = pathinfo($location);
        $extension = $info['extension'];
        
        switch($extension){
            case "gif":
                imagegif($this->mainImage, $location);
            break;
            case "png":
                imagepng($this->mainImage, $location);
            break;
            case "jpg":case "jpeg":
                imagejpeg($this->mainImage, $location, $quality);
            break;
            default:
                trigger_error("imageBox:: Unaable to save image, check save ext (".$extension.")",E_USER_ERROR);
            break;
        }
        return $this;
    }
    
    /*Private Functions*/
    private function _createNewImage($file){
        $info = $this->_gatherFileInfo($file);
        switch($info->mime){
            case "image/gif":
                return imagecreatefromgif($file);
            break;
            case "image/png":
                return imagecreatefrompng($file);
            break;
            case "image/jpg":
            case "image/jpeg":
                return imagecreatefromjpeg($file);
            break;
            default:
                trigger_error("imageBox:: Unable to load image into GD, Incorrect mime type (".$info->mime.")",E_USER_ERROR);
            break;
        }
    }
    
    private function _gatherFileInfo($file){
        $info = getimagesize($file);
        $this->tmp_info = new stdClass();
        
        /*Send the info to the stdClass*/
        $this->tmp_info->width    = $info[0];
        $this->tmp_info->height    = $info[1];
        $this->tmp_info->bits    = $info['bits'];
        $this->tmp_info->mime    = $info['mime'];        
        return $this->tmp_info;
    }
    
    private function html2rgb($color) {
        if ($color[0] == '#'){$color = substr($color, 1);}
        if(strlen($color) == 6){
            list($r, $g, $b) = array($color[0].$color[1],$color[2].$color[3],$color[4].$color[5]);
        }elseif(strlen($color) == 3){
            list($r, $g, $b) = array($color[0].$color[0],$color[1].$color[1],$color[2].$color[2]);
        }else{
            return array(hexdec("FF"),hexdec("FF"),hexdec("FF"));
        }
        return array(hexdec($r),hexdec($g),hexdec($b));
    }
    
    /*Destructor to remove the image*/
    function __destruct(){
        imagedestroy($this->mainImage);
    }
}
?>

Please feel free to test and let me know what you thik, + any ideas are appreciated

litewarez Reviewed by litewarez on 29th Nov 2009. [PHP] imageBox V1 (Text,Rotate,Watermak,Resize) Heya all, Ive created a Image Editing class to help you edit pictures via PHP Some of the features include Add Text (Add strings of text on the image) Rotate Image (Rotate the image with degrees such as 180 and 75 Degrees) Watermarking (Simply add a water wark by telling the class what watermark file to use) Resize (Scale down an image to any Dimenstions) Output to browser (Send your image and all your changes to the browser) Output to file (Using the saveAs method you can easily Rating: 5

[PHP] imageBox V1 (Text,Rotate,Watermak,Resize)

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